JP2009078088A - Ophthalmological device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ophthalmological device which can display information under a configuration being suitable for the light environment. <P>SOLUTION: This ophthalmological device 1 judges whether the brightness of the device's surroundings is not more than a threshold value or not by referring brightness information in environmental information indicating the light environment of the device's surroundings. When the brightness is judged to be not more than the threshold value, the ophthalmological device 1 classifies a plurality of information being included in medical information 32b into the first group and the second group conforming to classification information 32a. Then, the ophthalmological device 1 displays the gradation information of picture elements of the information which has been classified under the first group on a display section 41 by inverting the gradation information, and at the same time, displays the information which has been classified under the second group on the display section 41 as it is. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an ophthalmic apparatus used in the ophthalmic field. In particular, the present invention relates to an ophthalmologic apparatus having a function of displaying medical information.

  Various devices are used in the ophthalmic field. Many ophthalmic devices have a display function. For example, photographing apparatuses such as a fundus camera and a slit lamp microscope (slit lamp) have a function of displaying medical information such as a photographed image (see, for example, Patent Documents 1, 2, and 3).

  In the apparatuses described in Patent Documents 1 and 3, a display is mounted on an apparatus main body (a casing for storing an optical system for photographing). Moreover, in the apparatus described in Patent Document 2, a display is provided separately from the apparatus main body. In general, the screen size of the latter display is larger than the screen size of the former display.

  In the field of ophthalmology, a display device that displays medical information such as a captured image and an electronic medical record is also used (see, for example, Patent Document 4).

  By the way, in the field of ophthalmology, medical practice may be performed in a dark room. For example, when it is not desired to reduce the pupil of the eye to be examined, photographing is performed using a fundus camera installed in a dark room (see, for example, Patent Document 1). Further, when a medical practice is performed in a dark room, past examination results and patient information may be displayed for reference. In addition, not only a dark room where external light is almost blocked, but also medical practice may be performed in various light environments.

JP 2002-28134 A JP 2006-280703 A JP 2001-37726 A JP 2005-1444086 A

  As described above, the display mode cannot be changed according to the light environment in the conventional ophthalmologic apparatus, although the medical practice is performed under various light environments. For this reason, for example, when performing a medical practice in a dark room, the light emitted from the display may affect the environment (that is, the brightness of the room increases), making it difficult to perform the medical practice. As a specific example thereof, there is a case where the eye to be inspected is reduced by light from the display, and fundus photography cannot be suitably performed.

  In particular, when a display having a large screen size is used, the amount of emitted light is large, which increases the possibility of adversely affecting medical practice.

  In addition, when a medical practice is performed while referring to a plurality of pieces of information, all pieces of information may not be suitably viewed. For example, when referring to an image and character string information in a dark room, the character string information may be difficult to visually recognize due to the brightness of the image.

  In addition, the display of the ophthalmologic apparatus has a brightness adjustment function like a general display. However, it is complicated to manually adjust the brightness when performing a medical practice, and the work efficiency may be reduced. In particular, although it is assumed that the brightness adjustment is desired according to the brightness of the displayed object (image, character string information, etc.), it takes a lot of time and effort to do so with a conventional ophthalmic apparatus.

  Also, according to the manual brightness adjustment, the brightness of the entire screen can only be changed at once, and thus the above-mentioned case of referring to a plurality of pieces of information cannot be dealt with.

  Conventionally, a device has been devised such as turning on the display only when confirming the display contents, but there is a problem that the work efficiency of medical practice is lowered. In addition, this method cannot solve the problem of the above case that refers to a plurality of pieces of information.

  This invention was made in order to solve the above problems, and it aims at providing the ophthalmologic apparatus which can display information in the aspect according to the light environment of the place which performs a medical act. To do.

  Furthermore, an object of the present invention is to provide an ophthalmologic apparatus capable of displaying information in a manner corresponding to not only the light environment but also the display contents.

  In order to achieve the above object, the invention described in claim 1 is an ophthalmologic apparatus including a display unit that displays medical information, and an input unit that inputs light environment information that represents a light environment around the device; Control means for changing a pixel value of a pixel forming medical information based on light environment information and displaying the medical information with the changed pixel value on the display means.

  The invention according to claim 2 is the ophthalmologic apparatus according to claim 1, wherein the light environment information includes brightness information indicating brightness around the apparatus, and the control means includes the brightness. Including determination means for determining whether or not the brightness indicated in the information is equal to or less than a predetermined threshold, and when it is determined that the brightness is equal to or less than the predetermined threshold, changes the pixel values of at least some of the pixels of the medical information; The medical information in which the pixel value is changed is displayed on the display means.

  The invention according to claim 3 is the ophthalmologic apparatus according to claim 2, wherein the pixel value of the pixel of the medical information includes gradation information represented by a value within a predetermined gradation range. The control means inverts the gradation information of at least some of the pixels of the medical information in the gradation range when the determination means determines that the gradation information is equal to or less than a predetermined threshold, and the gradation information is inverted. The displayed medical information is displayed on the display means.

  The invention according to claim 4 is the ophthalmologic apparatus according to claim 1 or claim 2, wherein the medical information includes a plurality of information, and the control unit is configured to store the information included in the medical information. A storage unit that stores in advance classification information classified into a first group and a second group, and a classification unit that classifies the plurality of information based on the classification information, and is classified into the first group The pixel value of the information is changed, and the information of the first group in which the pixel value is changed and the information classified into the second group are displayed on the display means.

  The invention according to claim 5 is the ophthalmologic apparatus according to claim 3, wherein the medical information includes a plurality of information, and the control means sets the type of information included in the medical information to the first. A gray scale of the information classified into the first group, including storage means for previously storing the classification information classified into the group and the second group, and a classification means for classifying the plurality of information based on the classification information The display unit displays the information of the first group in which the gradation value is inverted and the information classified into the second group by inverting the value.

  The invention according to claim 6 is the ophthalmologic apparatus according to claim 4 or claim 5, wherein the classification information classifies character string information and / or graph information into the first group. It is characterized by.

  The invention according to claim 7 is the ophthalmologic apparatus according to claim 4 or claim 5, wherein the classification information classifies images obtained by photographing the eye to be examined into the second group. And

  The invention according to claim 8 is the ophthalmologic apparatus according to claim 4 or claim 5, wherein the classification information classifies monochrome images obtained by photographing the eye to be examined into the first group, and the eye to be examined. A color image obtained by shooting is classified into the second group.

  The invention according to claim 9 is the ophthalmologic apparatus according to claim 1 or 2, wherein the medical information includes a plurality of information, and the control means is configured to each of the plurality of information. , Calculating a statistical value of the pixel value, and classifying means for classifying the plurality of information into a first group and a second group based on the magnitude of the statistical value, the information of the information classified into the first group The pixel value is changed, and the information of the first group in which the pixel value is changed and the information classified into the second group are displayed on the display means.

  The invention according to claim 10 is the ophthalmologic apparatus according to claim 3, wherein the medical information includes a plurality of pieces of information, and the control unit is configured to provide gradations for each of the plurality of pieces of information. Grading information of information classified into the first group, including classification means for calculating a statistical value of information and classifying the plurality of information into a first group and a second group based on the magnitude of the statistical value And the display means displays the information of the first group in which the gradation information is inverted and the information classified into the second group.

  The invention according to claim 11 is the ophthalmologic apparatus according to claim 10, wherein the classification means is gradation information of a predetermined value or more among a plurality of pixels forming each of the plurality of information. Obtaining the number of pixels having the number as a statistical value, classifying information having the number of pixels equal to or greater than a predetermined number into the first group, and classifying information having less than the predetermined number into the second group. Features.

  The invention according to claim 12 is the ophthalmologic apparatus according to claim 1 or claim 2, wherein the medical information includes a plurality of information, and the control means Classifying means for calculating a statistical value of the pixel value, comparing the calculated statistical values, and classifying the plurality of information into a first group and a second group, and classifying the plurality of information into the first group The pixel value of the obtained information is changed, and the information on the first group and the information classified into the second group on which the pixel value is changed are displayed on the display means.

  The invention according to claim 13 is the ophthalmologic apparatus according to claim 3, wherein the medical information includes a plurality of pieces of information, and the control means performs gradation of each of the plurality of pieces of information. Classification means for calculating a statistical value of information and comparing the plurality of calculated statistical values to classify the plurality of information into a first group and a second group, and classified into the first group The gradation information of the information is inverted, and the display unit displays the information of the first group in which the gradation information is inverted and the information classified into the second group.

  The invention according to claim 14 is the ophthalmologic apparatus according to claim 1 or 2, wherein the control means displays the display size of the medical information when the medical information is displayed on the display means. The pixel value of the medical information is changed only when is equal to or larger than a predetermined size.

  The invention according to claim 15 is the ophthalmologic apparatus according to claim 3, wherein when the control means displays the medical information on the display means, the display size of the medical information is a predetermined size or more. The gradation information of the medical information is inverted only when it is.

  The invention described in claim 16 is the ophthalmologic apparatus according to claim 1 or 2, wherein the display means includes a plurality of display devices having different screen sizes, and the control means includes a screen size. The pixel value of the medical information is changed only when medical information is displayed on a display device having a predetermined size or larger.

  The invention according to claim 17 is the ophthalmologic apparatus according to claim 3, wherein the display means includes a plurality of display devices having different screen sizes, and the control means has a screen size equal to or larger than a predetermined size. Only when medical information is displayed on the display device, the gradation value of the medical information is inverted.

  The invention according to claim 18 is the ophthalmologic apparatus according to claim 1, characterized in that the input means includes an operation means for inputting the light environment information.

  The invention according to claim 19 is the ophthalmologic apparatus according to claim 1, wherein the input means includes detection means for detecting the light environment around the apparatus and generating the light environment information. It is characterized by.

  According to the ophthalmologic apparatus according to the present invention, the medical apparatus includes a display unit that displays medical information, changes the pixel value of a pixel that forms medical information based on light environment information around the apparatus, and the pixel value is changed Information can be displayed.

  In particular, the ophthalmic apparatus according to the present invention displays the medical information by inverting the gradation information of at least some of the pixels of the medical information when the brightness around the apparatus is equal to or less than a predetermined threshold. ing.

  According to such an ophthalmologic apparatus, it is possible to display information in a manner corresponding to the light environment of a place where medical practice is performed.

  Furthermore, according to the ophthalmologic apparatus according to the present invention, the plurality of information included in the medical information is classified into the first group and the second group according to the type of information, and the pixel values of the information classified into the first group are determined. The information of the first group in which the pixel value is changed and the information classified into the second group can be displayed. Thereby, it becomes possible to display information in a manner corresponding to not only the light environment but also the display content.

  An example of an embodiment of an ophthalmologic apparatus according to the present invention will be described in detail with reference to the drawings. Hereinafter, first to fifth embodiments will be described. Note that any two or more configurations of these five embodiments can be combined as appropriate.

<First Embodiment>
The ophthalmologic apparatus according to the first embodiment is an ophthalmologic apparatus having a function of displaying medical information, and changes and displays pixel values of pixels that form medical information based on a light environment around the apparatus. It is.

  Here, medical information means various types of information that are referred to in the medical field, particularly the ophthalmic field. Examples of medical information include patient information, examination information, and captured images.

  The patient information is information related to the patient, and includes character string information representing the patient ID, patient name, age, sex, and the like.

  The examination information is information relating to an ophthalmic examination, and includes character string information and graph information representing examination results and examination conditions. Examples of the character string information included in the examination information include the examination results of the objective optometry and the subjective optometry, and the photographing conditions (shooting angle of view etc.) when photographing the fundus image. Examples of the graph information include an inspection result of a visual field inspection and an inspection result of a Hess screen test. Note that the graph information may include image information other than the captured image, such as graphic information of a predetermined shape, as well as a graph representing the correlation between the amounts defined on two or more coordinate axes.

  The photographed image represents an image obtained by photographing the eye to be examined. Examples of the captured image include a fundus image of an eye to be examined, an anterior ocular segment image, an ultrasonic image, and an enlarged image of a corneal endothelial cell. These images are taken by an ophthalmologic photographing apparatus. Examples of the ophthalmologic photographing apparatus include a fundus camera, a slit lamp, an ultrasonic diagnostic apparatus, a specular microscope (photographs corneal endothelial cells), and an optical coherence tomography (OCT) apparatus.

  The light environment around the device means the state of illumination light (artificial light) or natural light at the place where the ophthalmic apparatus is installed. In this embodiment, a case where “brightness” is applied as the light environment will be described in detail. Note that the brightness in this embodiment is represented by an arbitrary unit such as lux (lx), candela (cd), luminance (cd / m ^ 2), watt (W), lumen (lm), and the like. It's okay. In addition to brightness, the light environment may include other characteristics such as light color (light spectrum distribution).

  Moreover, the pixel which forms medical information means the pixel (pixel) when displaying medical information. The pixel value includes a gray scale luminance value for displaying information in monochrome, an RGB value for displaying in color, and the like. Luminance values and RGB values are examples of gradation information represented by values within a predetermined gradation range such as 256 gradations and 65536 gradations. In addition to the gradation information, the pixel value may include transparency information (such as an alpha value).

[Constitution]
The configuration of the ophthalmologic apparatus according to this embodiment will be described. A configuration example of an ophthalmologic apparatus according to this embodiment is shown in FIG. The ophthalmic apparatus 1 is an arbitrary apparatus used in the ophthalmic field. The ophthalmologic apparatus 1 includes, for example, an ophthalmologic photographing apparatus, an ophthalmic examination apparatus, a medical computer, and the like.

  An example of an ophthalmologic photographing apparatus has been described above. An ophthalmic examination apparatus is an apparatus used in an examination in the ophthalmic field. Examples of examinations in the ophthalmic field include objective optometry, subjective optometry, visual field examination, eye position / eye movement examination, binocular visual function examination, optical vision examination, color vision examination, eyeglass examination, contact lens examination, intraocular pressure There are examinations, anterior eye examination, lacrimal examination, lacrimal examination, conjunctival examination, corneal examination, chamber / corner examination, pupil examination, axial length examination, radiation examination, electrophysiological examination and so on. In these examinations, a dedicated examination apparatus and an ophthalmologic apparatus such as a computer for inputting examination results are appropriately used. Note that in FIG. 1, illustrations are omitted for constituent parts specific to the ophthalmologic photographing apparatus and constituent parts specific to the ophthalmic examination apparatus.

  Examples of the medical computer include a computer for browsing and filling in an electronic medical record and a computer for browsing a photographed image.

  The ophthalmic apparatus 1 is provided with an optical environment input unit 2, a control unit 3, and a user interface (UI) 4. Hereinafter, each of these units 2 to 4 will be described.

[Light environment input section]
The light environment input unit 2 inputs light environment information representing the light environment around the ophthalmologic apparatus 1 to the control unit 3. The light environment input unit 2 is an example of the “input means” of the present invention.

  The light environment input unit 2 includes, for example, an operation device. This operation device may be configured integrally with an operation unit 42 described later, or may be provided separately from the operation unit 52.

  When the light environment information is input from the operation device, for example, a predetermined input screen is displayed on the display device of the user interface 5. On this input screen, for example, options for the light environment are presented. This option includes, for example, items such as “normal” and “dark room”. “Normal” represents a light environment other than a dark room. The operator selects a desired option by operating the operation device. This selection operation is performed, for example, by clicking a desired option and inputting a check mark.

  The method for manually inputting the light environment information is not limited to this. For example, light environment information around the ophthalmologic apparatus 1 (for example, the brightness of a light (watt, candela, etc.)) may be input using an operation device.

  Such an operation device is an example of the “operation means” of the present invention. This operation device can be configured by an arbitrary device such as a mouse, a keyboard, a trackball, a joystick, a control panel, a pen tablet, or a touch panel display.

  The light environment input unit 2 may include a light detector that detects the light environment around the ophthalmologic apparatus 1. This photodetector includes an electronic circuit using, for example, a photodiode, and detects the brightness around the device.

  Note that the configuration of the photodetector is not limited to this. For example, the photodetector can be configured using any detection device using a quantum effect (photoelectric effect) such as a photoconductive element, a phototransistor, a photoelectric tube, or a photomultiplier tube. In addition, a photodetector can be configured by applying thermal detection such as a thermocouple or pyroelectric element.

  Such a photodetector is an example of the “detection means” of the present invention. Instead of detecting ambient brightness (or detecting ambient brightness), the photodetector may be configured to detect the color of ambient light. In this case, the photodetector includes a spectrometer (spectrometer) that can detect the spectral distribution of light.

(Control part)
The control unit 3 receives the input of the light environment information from the light environment input unit 2, and changes the pixel value of the pixel forming the medical information based on the light environment information. Furthermore, the control unit 3 causes the display unit 41 described later to display medical information whose pixel value has been changed. The control unit 3 is an example of the “control unit” of the present invention.

  In order to execute such processing, the control unit 3 includes a main control unit 31, a storage unit 32, and an information processing unit 33.

(Main control unit)
The main control unit 31 controls each unit of the ophthalmologic apparatus 1. In particular, the main control unit 31 performs a process of reading information stored in the storage unit 32 and a process of storing information in the storage unit 32. In addition, the main control unit 31 performs processing for displaying information on the display unit 41. Details of the operation of the main control unit 31 will be described later.

(Memory part)
The storage unit 32 stores various types of information. In particular, the storage unit 32 stores classification information 32a and medical information 32b.

  The classification information 32a is information obtained by classifying various types of information (described above) included in medical information into two groups (first group and second group). Identification information (type information) indicating the type of information is given to each piece of information included in the medical information. The classification information 32a is information (for example, table information) obtained by classifying various types of information into the first group or the second group.

  Information belonging to the first group is information to be subjected to pixel value change processing. Examples of information belonging to the first group include character string information and graph information. The character string information and the graph information are information capable of grasping the same content as before the change even if the pixel value is changed. The graph information may include character string information such as numerical values of coordinate axes, for example.

  As an example, even if the gradation information of the pixels forming the character string information is inverted, for example, the character string information drawn in black on a white background is only changed to be drawn in white on a black background. The contents can be grasped. Similarly, with respect to the graph information, the display color and display luminance of the graph (or graphic etc.) and the background color and background luminance are merely changed, and the contents can be grasped. Note that the information belonging to the first group is not limited to character string information or graph information, and may be arbitrary information that does not change the contents that are grasped before and after the change of the pixel value.

  The information belonging to the second group is information that is not subject to pixel value change processing. An example of information belonging to the second group is a captured image. The captured image is information that may have different contents to be grasped as the pixel value is changed. For example, when the pixel value of the captured image is changed, there is a possibility that a lesion or the like that is clearly depicted in the original image is unclearly depicted. In general, the captured image is always displayed in the same manner. Therefore, when the pixel value is changed, the examiner must observe an image displayed in an unfamiliar manner. For example, since an OCT image of the fundus is generally displayed as a black luminance image, if the luminance value is inverted, a lesion such as edema may be overlooked. Note that the information belonging to the second group is not limited to the captured image, and may be any information that may change the content grasped before and after the change of the pixel value.

  Further, even a captured image can be classified into the first group as long as there is no possibility that the content grasped before and after the change of the pixel value is changed. Conversely, even character string information and graph information can be classified into the second group as long as the content grasped before and after the change of the pixel value is likely to change.

  The classification based on the classification information 32a is not limited to the above. For example, classification information 32a classified based on the brightness of the pixels forming the information can be used. A specific example will be described. Information including a large number of pixels representing light colors such as white, that is, pixels that are brightly displayed is classified into the first group. On the other hand, information that does not belong to the first group is classified into the second group.

  Note that “many” that is a condition for belonging to the first group may be set by default, or may be set manually by an operator. This “many” is defined as, for example, the ratio of the number of pixels having a luminance value (brightness) equal to or greater than a predetermined value to all pixels forming information. In the classification information 32a, for example, information whose ratio is (normally) 80% or more is classified into the first group, and other information is classified into the second group.

  Specific examples of information belonging to the first group in this classification include character string information and graph information displayed on a white background. When such information is displayed, relatively strong light is emitted from the display surface, which has an influence such as deterioration of the light environment in a dark room. On the other hand, as a specific example of the information belonging to the second group, there is a captured image displayed on a black background such as an OCT image or a fluorescent fundus image.

  The classification defined by the classification information 32a may be set by default, or may be manually set by an operator. The storage unit 32 that stores the classification information 32a is an example of the “storage unit” of the present invention.

  The medical information 32b is input from an external device and stored in the storage unit 32. The external device may be an imaging device or an inspection device, or may be an information management system such as an electronic medical record system or an image server.

  The medical information 32b may include a plurality of information. For example, the medical information 32b may include all of the captured image, character string information, and graph information. Moreover, the medical information 32b may include a plurality of captured images (or a plurality of character string information or a plurality of graph information).

(Information Processing Department)
The information processing unit 33 receives the input of light environment information from the light environment input unit 2 and processes the medical information 32b. It is assumed that the light environment information of this embodiment includes information (brightness information) indicating the brightness around the apparatus as described above. The information processing unit 33 performs a process of changing the pixel value of the medical information 32b displayed on the display unit 41 based on the brightness information. The information processing unit 33 includes a light environment determination unit 34, an information classification unit 35, and a pixel value change unit 36. Hereinafter, each of these units 34 to 36 will be described.

(Light environment judgment part)
The light environment determination unit 34 holds a threshold value related to the brightness around the apparatus. This threshold value is stored in advance in the storage unit 32, for example. The main control unit 31 reads this threshold value from the storage unit 32 and sends it to the light environment determination unit 34.

  This threshold value may be set by default or may be set appropriately by the operator. The unit of the threshold is the same as the unit of brightness indicated in the brightness information input from the light environment input unit 2.

  When receiving the light environment information from the light environment input unit 2, the light environment determination unit 34 determines whether or not the brightness indicated in the brightness information in the light environment information is equal to or less than a threshold value. This determination process can be easily executed by comparing the magnitudes of two values expressed in the same unit as described above.

  Note that this determination process is not limited to the brightness comparison process. For example, when the above-mentioned option “normal” or “dark room” is selected in the light environment input unit 2, the light environment determination unit 34 determines that “brightness around the device” is selected when the selection result is “normal”. If the selection result is “dark room”, it is determined that “the brightness around the apparatus is equal to or less than the threshold”.

  The light environment determination unit 34 sends the determination result of the brightness around the device to the information classification unit 35. The light environment determination unit 34 is an example of the “determination unit” of the present invention.

(Information Classification Department)
The information classification unit 35 is a case where a plurality of information is included in the medical information 32b (when the medical information 32b including a plurality of information is displayed), and the light environment determination unit 34 determines the brightness around the device. Operates when it is determined that is less than or equal to the threshold. The information classification unit 35 classifies each piece of information included in the medical information 32b into the first group or the second group based on the classification information 32a.

  This classification process will be described in more detail. The classification information 32a is information obtained by classifying the type information (identification information) of various types of information included in the medical information into the first group and the second group as described above. Further, type information is given to each piece of information included in the medical information 32b.

  This type information is given by a device (for example, an imaging device) that generates the medical information 32b, a device (for example, an image server) through which the medical information 32b passes, or the ophthalmologic apparatus 1. When the type information is provided by the ophthalmologic apparatus 1, the main control unit 31 may be configured to automatically provide the type information, or the operator may be configured to provide the type information manually. . In the former case, for example, the main control unit 31 determines the type of each piece of information in the medical information 32b (for example, makes a determination by referring to an extension or a data form), and assigns type information corresponding to the type. In the latter case, for example, the information included in the medical information 32b is displayed in advance, and the operator confirms the contents of each information and designates the type to give the type information.

  The information classification unit 35 specifies whether the type information is classified into the first group or the second group for each piece of information included in the medical information 32b. The information classification unit 35 sends the identification result to the pixel value changing unit 36. The information classification unit 35 is an example of “classification means” of the present invention.

(Pixel value change part)
The pixel value changing unit 36 receives the classification result from the information classifying unit 35 and changes the pixel value of each information included in the medical information 32b. At this time, it is assumed that each piece of information included in the medical information 32b is converted into a display format by the main control unit 31. Note that the pixel value changing unit 36 operates only when the light environment determining unit 34 determines that the brightness around the apparatus is equal to or less than the threshold value.

  An example of processing executed by the pixel value changing unit 36 will be described. The pixel value changing unit 36 changes the pixel value of the information classified into the first group among the plurality of pieces of information included in the medical information 32b when it is determined that the brightness around the apparatus is equal to or less than the threshold value.

  In particular, the pixel value changing unit 36 inverts the gradation information in the pixel values of the information (change target information) classified into the first group. This inversion process is executed as follows, for example. As described above, the gradation information of the change target information is defined by values within a predetermined gradation range. If the gradation range is 0 to K and the gradation information value of a certain pixel is k, the pixel value changing unit 36 converts the gradation information value k to K−k. As a specific example, when the gradation range is 0 to 255, the gradation values 0, 100, and 255 are converted to 255, 155, and 0, respectively.

  Note that the processing executed by the pixel value changing unit 36 is not limited to such inversion processing. For example, the pixel value of each pixel can be reduced uniformly so that the change target information is displayed darker.

[User interface]
The user interface 4 is provided with a display unit 41 and an operation unit 42. The display unit 41 displays various information such as medical information. The operation unit 42 is operated by an operator to operate the ophthalmologic apparatus 1 and to input various information.

[Hardware configuration]
A hardware configuration of the ophthalmologic apparatus 1 having the above functions will be described. FIG. 2 illustrates an example of a hardware configuration of the ophthalmologic apparatus 1.

  The ophthalmologic apparatus 1 is connected to an external apparatus 200 such as an imaging apparatus, an inspection apparatus, an electronic medical record system, and an image server via a communication line N. The communication line N is configured by a LAN (Local Area Network) or the like.

  An example of processing for acquiring medical information from the external device 200 will be described. First, the operator inputs a request for browsing or editing medical information to the ophthalmologic apparatus 1. This request is made, for example, by inputting or selecting patient identification information such as a patient ID and clicking a predetermined soft key (soft key for instructing search for medical information). The ophthalmologic apparatus 1 transmits the input request to the external device 200. The external device 200 searches for medical information based on this request, and transmits the search result to the ophthalmologic apparatus 1. Thereby, the ophthalmologic apparatus 1 acquires medical information requested by the operator.

  An example of the hardware configuration of the ophthalmologic apparatus 1 will be described. As shown in FIG. 2, the ophthalmologic apparatus 1 includes a microprocessor 101 such as a CPU, a RAM 102 that functions as a main storage device, a ROM 103 that functions as an external storage device, and a hard disk drive (HDD) 104 that also functions as an external storage device. . The ophthalmic apparatus 1 further includes a display 105, a keyboard 106, a mouse 107, and a communication interface (I / F) 108. These units 101 to 108 are connected via a bus 109.

  The ophthalmologic apparatus 1 may include peripheral devices such as a printer and a drive device. In the case of including a drive device, the ophthalmologic apparatus 1 can receive medical information recorded on a recording medium (media).

  The microprocessor 101 causes the ophthalmologic apparatus 1 to execute an operation specific to this embodiment by expanding the program 104 a stored in the hard disk drive 104 on the RAM 102.

  Further, the microprocessor 101 executes control of various parts of the ophthalmologic apparatus 1 and various arithmetic processes. The main control unit 31 and the information processing unit 33 are each configured to include a microprocessor 101. The storage unit 32 includes the hard disk drive 104.

  The display 105 includes an arbitrary display device such as an LCD (Liquid Crystal Display) or a CRT (Cathode Ray Tube) display. The display unit 41 includes a display 105. The operation unit 42 includes a keyboard 106 and a mouse 107. The operation unit 42 may include any operation device other than these.

  In the user interface 4 of this embodiment, the display unit 41 and the operation unit 42 are individually provided. However, a user interface in which these are integrated can be formed. As a user interface in which the display function and the operation function are integrated as described above, there are a pen tablet and a touch panel.

  The communication interface 108 performs data communication via the communication line N based on the control of the microprocessor 101. The communication interface 108 includes a network adapter such as a LAN card conforming to the communication line N. The main control unit 31 includes a communication interface 108.

[Mode of operation]
An operation mode of the ophthalmologic apparatus 1 will be described. The flowchart shown in FIG. 3 represents an example of the operation mode of the ophthalmologic apparatus 1. Here, it is assumed that the medical information 32 b has already been acquired from the external device 200 and stored in the storage unit 32.

  First, light environment information is input from the light environment input unit 2 (S1). It is assumed that the light environment information includes brightness information.

  Next, the light environment determination unit 34 determines whether the brightness indicated in the brightness information is equal to or less than a threshold value (S2).

  When it is determined that the brightness exceeds the threshold (S2: No), the main control unit 31 causes the display unit 41 to display the medical information 32b as it is (that is, without changing the pixel value) (S6). This is the end of the process in this case.

  On the other hand, when it is determined that the brightness is equal to or less than the threshold value (S2: Yes), the information classification unit 35 refers to the classification information 32a and sets the plurality of information included in the medical information 32b to the first group and the second group. Classify into groups (S3).

  Subsequently, the pixel value changing unit 36 inverts the gradation information of each piece of information classified into the first group (S4).

  The main control unit 31 causes the display unit 41 to display the information in which the gradation information is inverted and the information classified into the second group (information in which the pixel value is not changed) (S5). This is the end of the process in this case.

〔Concrete example〕
As a specific example of the above operation mode, a case where graph information and a captured image are included in the medical information 32b will be described. Here, in the classification information 32a, the graph information is classified into the first group, and the photographed image is classified into the second group. According to the above operation mode, the graph information is displayed with the gradation information (luminance value etc.) inverted, and the captured image is displayed as it is.

  FIG. 5 shows a mode in which the medical information 32b is displayed as it is. The medical information 32b includes graph information H1 and H2 indicating the inspection result of the visual field inspection, and a color image G of the fundus. If the medical information 32b is displayed as it is in the dark room, the environment of the dark room may be deteriorated by light emitted from the display areas of the graph information H1 and H2 (particularly white portions) including many bright pixels.

  FIG. 6 shows a mode when the medical information 32b is displayed by the above-described operation mode. According to the above operation mode, the graph information H1 ′ and H2 ′ and the color image G of the fundus are displayed. The graph information H1 ′ and H2 ′ are information obtained by inverting the gradation information (white and black) in the graph information H1 and H2, respectively. Further, the color image G is displayed in the same display mode as in the case of FIG. Thereby, the bad influence which graph information H1 and H2 have on the light environment of a dark room can be controlled.

[Action / Effect]
The operation and effect of the ophthalmic apparatus 1 as described above will be described.

  The ophthalmologic apparatus 1 operates to change the pixel value of the pixel forming the medical information 32b based on the light environment information representing the light environment around the apparatus, and to display the medical information in which the pixel value is changed.

  In particular, the ophthalmologic apparatus 1 determines whether or not the brightness around the apparatus is less than or equal to a threshold with reference to the brightness information in the light environment information, and when it is determined that the brightness is less than or equal to the threshold, The information 32b is displayed by changing the pixel values of at least some of the pixels.

  At this time, the ophthalmologic apparatus 1 changes the pixel value only for the information classified into the first group by the information classification unit 35. At this time, the ophthalmologic apparatus 1 reverses the gradation information as the pixel value changing process.

  As a result, information such as character string information or graph information that does not have the risk of misrecognizing the contents by changing the pixel value, or information with a high ratio of brightly displayed pixels (information displayed on a white background) Etc.) is changed. On the other hand, the pixel value is changed for information that tends to cause misunderstanding of the contents by changing the pixel value, such as a photographed image, or for information with a low ratio of brightly displayed pixels (information displayed on a black background). It is displayed as it is.

  According to such an ophthalmologic apparatus 1, information can be displayed in a mode corresponding to the light environment (particularly brightness) of a place where medical practice is performed. For example, when a medical practice is performed in a dark room, light emitted from the information display surface (screen of the display unit 41) is reduced, and deterioration of the light environment in the dark room (that is, brightening) can be suppressed.

  Furthermore, according to the ophthalmologic apparatus 1, the pixel value can be selectively changed only for information that is not likely to cause misunderstanding of the content, so that the information in a mode according to the content is maintained while maintaining the light environment of the place where medical practice is performed Can be displayed.

[Modification]
A modification of the ophthalmologic apparatus 1 will be described.

  In the above embodiment, gradation information inversion processing is executed as pixel value changing processing. However, pixel values can be changed by other methods. For example, as described above, it is possible to obtain the same operation and effect as in the above-described embodiment by uniformly reducing the pixel value (luminance value, etc.) of each pixel and displaying information darker.

  In the above embodiment, whether or not to execute the pixel value changing process is switched by the input of the light environment (light environment input unit 2) and the determination of the light environment (light environment determination unit 34). When the light environment around the ophthalmic apparatus 1 changes each time, it is desirable to perform this switching each time.

  On the other hand, when the light environment around the ophthalmic apparatus 1 is unchanged, it is sufficient to input and determine the light environment once, for example, when the apparatus is installed. It is possible to input a new light environment when the installation location is subsequently changed.

  In the classification information 32a of the above embodiment, the photographed images are classified into the second group (not subject to change of pixel values), but the images belonging to the first group and the images belonging to the second group are classified according to the photographing type and the like. It can be divided into

  For example, it is desirable to classify color images into the second group so as not to impair the meaning of the display color. On the other hand, some monochrome images, particularly images with a narrow gradation range, do not have a high risk of misunderstanding even if the pixel value is changed (for example, a photographed image of corneal endothelial cells or an ultrasonic image). Such monochrome images may be classified into the first group and subjected to pixel value change processing.

  In the above embodiment, various information included in the medical information is classified into the first group and the second group. However, a group to which information that is not classified can be separately provided. For example, a group (third group) to which information excluded from the automatic classification process belongs can be provided. The third group includes, for example, information whose contents differ greatly for each piece of information even though they are of the same type, so that the brightness at the time of display varies greatly. The information classified into the third group in the medical information 32b is displayed on a predetermined screen, for example, and allows the operator to select whether or not to change the pixel value.

  Further, even when there is information of a type that cannot be classified by the classification information 32a, it is possible to display the same screen and allow the operator to select whether or not to change the pixel value.

  In the above embodiment, attention is focused on the brightness as the light environment around the apparatus, but the display mode of the medical information can be changed according to other light environments. For example, the display mode can be changed by paying attention to the color of light emitted from a room where the apparatus is installed.

  As a specific example, in order to prevent the display information similar to the color tone of the illumination from becoming difficult to see, for each information included in the medical information 32b, the color (RGB value) of each pixel forming the information and the illumination light Are compared with each other (input from the light environment input unit 2), and the number of pixels whose difference is equal to or less than a predetermined value is obtained. Then, the pixel value of information for which the number of pixels is equal to or greater than a predetermined number is changed to a color greatly different from the color of the illumination light and displayed. Thereby, it becomes easy to see information including many color tones similar to the color tone of the illumination light.

<Second Embodiment>
The ophthalmologic apparatus according to this embodiment determines whether or not to change the pixel value based on the pixel value of the medical information in the display mode without referring to the classification information as in the first embodiment. .

  A configuration example of the ophthalmologic apparatus according to this embodiment is shown in FIG. This ophthalmologic apparatus 10 has a configuration substantially similar to that of the ophthalmologic apparatus 1 of the first embodiment. The same components as those in the first embodiment are denoted by the same reference numerals.

  The ophthalmologic apparatus 10 includes a light environment input unit 2, a control unit 3, and a user interface 4 as in the first embodiment. The main differences from the first embodiment are that classification information is not stored in the storage unit 32 and a statistical value calculation unit 37 is provided in the information classification unit 35.

  The statistical value calculator 37 calculates the statistical value of the pixel value for each piece of information included in the medical information 32. This statistical value means a value obtained by performing statistical processing on the pixel values of a plurality of pixels forming the information.

  An example of a statistical value when the pixel value includes gradation information will be described. Consider information formed by N pixels P1 to PN. First, the statistical value calculation unit 37 acquires gradation information (gradation value) of each pixel, and creates a histogram representing the number of pixels for each gradation value. This histogram can be created by dividing the gradation range into a plurality of partial ranges and counting the number of pixels for each partial range. Each partial range includes one or more gradation values.

  Next, the statistical value calculation unit 37 refers to the histogram to obtain the number of pixels whose gradation value is equal to or greater than a predetermined value. This predetermined value is set in advance. This predetermined value may be set by default, or may be set appropriately by an operator manually. The number of pixels thus obtained is used as the statistical value.

  In addition, the process which the statistical value calculating part 37 performs is not limited to this. For example, it is possible to determine the same statistical value for each pixel by determining whether the gradation value is equal to or higher than a predetermined value and counting the number of gradation values determined to be equal to or higher than the predetermined value.

  The information classification unit 35 determines whether the number of pixels obtained by the statistical value calculation unit 37 is greater than or equal to a predetermined number for each piece of information included in the medical information 32b. This predetermined number is set in advance. This predetermined number may be set by default or may be set manually by the operator.

  In this process, the information classification unit 35 compares the number of pixels obtained by the statistical value calculation unit 37 with the predetermined number. This comparison process may literally compare the number of pixels, or may compare the ratio to the total number of pixels.

  When the former comparison process is performed, the predetermined number is, for example, information indicating a threshold value for the number of pixels. In this case, the information classification unit 35 compares the number of pixels obtained by the statistical value calculation unit 37 with the threshold value.

  When the predetermined number is defined as a ratio to the total number of pixels, for example, the information classification unit 35 obtains a threshold for the number of pixels by multiplying the total number of pixels of the information by the ratio, and this threshold And the number of pixels obtained by the statistical value calculation unit 37 are compared.

  On the other hand, when the latter comparison process (ratio comparison) is performed, the predetermined number is, for example, information indicating a ratio to the total number of pixels. In this case, the information classification unit 35 divides the number of pixels obtained by the statistical value calculation unit 37 by the total number of pixels of the information to obtain a ratio in the information. Further, the information classification unit 35 compares the ratio in the information with the ratio as the predetermined number.

  When the predetermined number is defined as a threshold value for the number of pixels, the threshold value may be divided by the total number of pixels of the information to obtain a ratio that becomes the threshold value and compared with the ratio in the information.

  The information classification unit 35 makes a determination on each piece of information included in the medical information 32b as described above. Then, the information classification unit 35 classifies the information determined by the statistical value calculation unit 37 that the number of pixels is equal to or greater than the predetermined number into the first group, and determines the information determined to be less than the predetermined number. Classify into the second group.

  According to such a classification, the information classified into the first group is information including a predetermined number (or a predetermined ratio) of pixels having a large gradation value, that is, pixels that are brightly displayed. The information classified into the second group is information in which the number of pixels having a large gradation value is smaller than a predetermined number (or information lower than a predetermined ratio).

  An operation mode of the ophthalmologic apparatus 10 will be described. FIG. 7 illustrates an example of an operation mode of the ophthalmologic apparatus 10.

  First, light environment information is input from the light environment input unit 2 (S11). It is assumed that the light environment information includes brightness information.

  Next, the light environment determination unit 34 determines whether the brightness indicated in the brightness information is equal to or less than a threshold value (S12).

  When it determines with brightness exceeding a threshold value (S12: No), the main-control part 31 displays the medical information 32b on the display part 41 as it is (S17). This is the end of the process in this case.

  On the other hand, when it is determined that the brightness is equal to or lower than the threshold (S12: Yes), the statistical value calculation unit 37 calculates the number of pixels having gradation values equal to or greater than a predetermined value for each piece of information included in the medical information 32b. A statistical value to be expressed is obtained (S13).

  Subsequently, the information classification unit 35 classifies the plurality of information included in the medical information 32b into the first group and the second group based on the statistical value of each information obtained by the statistical value calculation unit 37 (S14). .

  Next, the pixel value changing unit 36 inverts the gradation information of each piece of information classified into the first group (S15).

  The main control unit 31 causes the display unit 41 to display the information in which the gradation information is inverted and the information classified into the second group (S16). This is the end of the process in this case.

  The operation and effect of the ophthalmic apparatus 10 as described above will be described.

  The ophthalmologic apparatus 10 calculates a statistical value of the pixel value (particularly gradation information) for each piece of information included in the medical information 32b, and calculates a plurality of pieces of information included in the medical information 32b based on the magnitude of the statistical value. Classify into 1 group and 2nd group. Furthermore, the ophthalmologic apparatus 10 displays the information classified into the second group while changing the pixel values of the information classified into the first group.

  In particular, the ophthalmologic apparatus 10 obtains, as a statistical value, the number of pixels having gradation information (gradation value) equal to or greater than a predetermined value among a plurality of pixels forming each piece of information included in the medical information 32b. The ophthalmologic apparatus 10 classifies information whose statistical value is equal to or larger than a predetermined number into the first group, and classifies information smaller than the predetermined number into the second group.

  According to such an ophthalmologic apparatus 10, for information including a large number of brightly displayed pixels (information with a high ratio of brightly displayed pixels) such as character string information and graph information, the gradation value is inverted. On the other hand, information with a small number of brightly displayed pixels (information with a low ratio of brightly displayed pixels) can be displayed as it is without changing the gradation value.

  Thereby, it becomes possible to display information in a manner corresponding to the light environment (particularly brightness) of the place where the medical practice is performed. For example, when a medical practice is performed in a dark room, light emitted from the information display surface (screen of the display unit 41) is reduced, and deterioration of the light environment of the dark room can be suppressed.

  In addition, it is possible to apply the arbitrary structures demonstrated in 1st Embodiment and its modification to the ophthalmologic apparatus which concerns on this embodiment.

<Third Embodiment>
The ophthalmologic apparatus according to this embodiment classifies information included in medical information using statistical values similar to those in the second embodiment, and determines whether or not pixel value change processing is performed on each piece of information.

  The ophthalmologic apparatus according to this embodiment includes an optical environment input unit 2, a control unit 3, and a user interface 4, similarly to the ophthalmologic apparatus 10 of the second embodiment. Further, the information classification unit 35 is provided with a statistical value calculation unit 37 similar to that of the second embodiment. The main difference between this embodiment and 2nd Embodiment exists in the process which the information classification | category part 35 performs.

  The statistical value calculator 37 calculates the statistical value of the pixel value for each piece of information included in the medical information 32b. In particular, the statistical value calculator 37 calculates the statistical value of the gradation information for each piece of information.

  The information classification unit 35 compares a plurality of statistical values and classifies the plurality of information included in the medical information 32b into the first group and the second group. A specific example of this process will be described. The statistical value of each information is, for example, the number of pixels having a gradation value equal to or higher than a predetermined value among the plurality of pixels forming the information (or the ratio of the information to the total number of pixels).

  For example, the information classification unit 35 determines whether or not there is an extremely large value among the statistical values of a plurality of information compared to other statistical values. This process can be performed, for example, by simply comparing the sizes when the number of pieces of information is small. When the number of pieces of information is large, the presence or absence of an extremely large statistical value can be determined by obtaining a standard deviation or variance, or using a method such as a least square method.

  Note that “extremely large” means that it is larger than a preset value, for example. This value may be set by default, may be set manually by the operator, or may be derived from a set of statistical values (population) by an appropriate method. It may be. As an example of the last method, the standard deviation 2σ can be used as the above value.

  The information classification unit 35 classifies information having extremely large statistical values specified in this way into the first group, and classifies other information into the second group.

  An operation mode of the ophthalmologic apparatus according to this embodiment will be described. FIG. 8 shows an example of the operation mode of the ophthalmologic apparatus.

  First, light environment information is input from the light environment input unit 2 (S21). It is assumed that the light environment information includes brightness information.

  Next, the light environment determination unit 34 determines whether the brightness indicated in the brightness information is equal to or less than a threshold value (S22).

  When it determines with brightness exceeding a threshold value (S22: No), the main control part 31 displays the medical information 32b on the display part 41 as it is (S27). This is the end of the process in this case.

  On the other hand, when it is determined that the brightness is equal to or lower than the threshold value (S22: Yes), the statistical value calculation unit 37 calculates the number of pixels having gradation values equal to or greater than a predetermined value for each piece of information included in the medical information 32b. A statistical value to be expressed is obtained (S23).

  Subsequently, the information classification unit 35 compares the statistical values of the plurality of information obtained by the statistical value calculation unit 37, and classifies the plurality of information included in the medical information 32b into the first group and the second group ( S24).

  Next, the pixel value changing unit 36 inverts the gradation information of each piece of information classified into the first group (S25).

  The main control unit 31 causes the display unit 41 to display the information obtained by inverting the gradation information and the information classified into the second group (S26). This is the end of the process in this case.

  The operation and effect of the ophthalmologic apparatus according to this embodiment will be described.

  The ophthalmologic apparatus according to this embodiment calculates the statistical value of the pixel value (particularly gradation information) for each piece of information included in the medical information 32b, and compares the plurality of statistical values to include the information in the medical information 32b. The plurality of pieces of information are classified into a first group and a second group. In this processing, in particular, information corresponding to statistical values having extremely large statistical values is classified into the first group. Furthermore, this ophthalmologic apparatus changes and displays the pixel values of the information classified into the first group, and displays the information classified into the second group.

  According to such an ophthalmologic apparatus, the gradation value of information including a large number of brightly displayed pixels (information with a high ratio of brightly displayed pixels), such as character string information and graph information, is inverted. On the other hand, information with a small number of brightly displayed pixels (information with a low ratio of brightly displayed pixels) can be displayed as it is without changing the gradation value.

  Thereby, it becomes possible to display information in a manner corresponding to the light environment (particularly brightness) of the place where the medical practice is performed.

  In addition, it is possible to apply the arbitrary structures demonstrated in 1st Embodiment and its modification to the ophthalmologic apparatus which concerns on this embodiment.

<Fourth Embodiment>
The ophthalmologic apparatus according to this embodiment determines whether or not to change the pixel value according to the display size of medical information. Here, the display size is an arbitrary parameter representing the size (size) of medical information to be displayed, such as the size actually displayed on the screen of the display means and the number of pixels forming medical information.

  A configuration example of the ophthalmologic apparatus according to this embodiment is shown in FIG. This ophthalmologic apparatus 20 has a configuration substantially similar to that of the ophthalmologic apparatus 1 of the first embodiment. The same components as those in the first embodiment are denoted by the same reference numerals.

  The ophthalmologic apparatus 20 includes the light environment input unit 2, the control unit 3, and the user interface 4 as in the first embodiment. The main difference from the first embodiment is that a display size determination unit 38 is provided in the information classification unit 35.

  First, the display size determination unit 38 specifies the display size of the medical information based on the image data (display data) of the medical information 32b. Thereby, for example, the number of pixels of the image data of the medical information 32b is specified.

  Further, the display size determination unit 38 determines whether the specified display size is equal to or larger than a predetermined size (size threshold). This size threshold value may be set by default, or may be set manually by an operator as appropriate.

  When a plurality of pieces of information are included in the medical information 32b, the display size determination unit 38 specifies the display size of each piece of information, and further compares the display size of each piece of information with a size threshold value.

  At this time, it is possible to provide different size thresholds depending on the type of information. For example, for information including a large number of brightly displayed pixels such as character string information and graph information, a relatively small size threshold is set. A large size threshold is set.

  An operation mode of the ophthalmic apparatus 20 will be described. FIG. 10 shows an example of the operation mode of the ophthalmologic apparatus 20.

  First, light environment information is input from the light environment input unit 2 (S31). It is assumed that the light environment information includes brightness information.

  Next, the light environment determination unit 34 determines whether the brightness indicated in the brightness information is equal to or less than a threshold value (S32).

  When it is determined that the brightness exceeds the threshold value (S32: No), the main control unit 31 displays the medical information 32b as it is on the display unit 41 (S38). This is the end of the process in this case.

  On the other hand, when it is determined that the brightness is equal to or lower than the threshold (S32: Yes), the display size determination unit 38 specifies the display size of each piece of information included in the medical information 32b (S33). Further, the display size determination unit 38 determines whether the display size of each information is equal to or larger than the size threshold (S34).

  The information classification unit 35 classifies information having a display size greater than or equal to the size threshold into the first group, and classifies information having a display size less than the size threshold into the second group (S35).

  Next, the pixel value changing unit 36 inverts the gradation information of each piece of information classified into the first group (S36).

  The main control unit 31 causes the display unit 41 to display the information in which the gradation information is inverted and the information classified into the second group (S37). This is the end of the process in this case.

  The operation and effect of the ophthalmologic apparatus 20 will be described.

  The ophthalmologic apparatus 20 specifies the display size of each piece of information included in the medical information 32b, classifies information whose display size is greater than or equal to a threshold value into the first group, and classifies other information into the second group. Further, the ophthalmologic apparatus 20 displays the information classified into the second group while changing the pixel values of the information classified into the first group.

  According to such an ophthalmologic apparatus 20, information having a large display size, that is, a pixel value of information having a large influence on the light environment around the apparatus can be changed and displayed. In particular, by setting the size threshold of information including a large number of brightly displayed pixels (information with a high ratio of brightly displayed pixels) such as character string information and graph information to a relatively small value, such information is displayed. Can reduce the adverse effect on the light environment, and information can be displayed in a manner according to the light environment (particularly brightness) of the place where the medical practice is performed.

  In addition, it is possible to apply the arbitrary structures demonstrated in 1st Embodiment and its modification to the ophthalmologic apparatus which concerns on this embodiment.

<Fifth Embodiment>
The ophthalmologic apparatus according to this embodiment includes a plurality of display devices, and determines the presence / absence of a pixel value changing process according to a display device that displays medical information.

  In the field of ophthalmology, medical treatment and examination may be performed using a plurality of display devices. For example, there is a method of using a method of filling in an electronic medical record displayed on another display device while observing a captured image displayed on one display device.

  A configuration example of the ophthalmologic apparatus according to this embodiment is shown in FIG. The ophthalmic apparatus 30 has substantially the same configuration as the ophthalmic apparatus 1 of the first embodiment. The same components as those in the first embodiment are denoted by the same reference numerals.

  The ophthalmologic apparatus 30 includes the light environment input unit 2, the control unit 3, and the user interface 4 as in the first embodiment. The main difference from the first embodiment is that a plurality of display devices (first display unit 41A, second display unit 41B) are provided, and the main control unit 31 is provided with a display selection unit 31a. Is a point. Note that the number of display devices provided in the ophthalmic apparatus according to this embodiment is arbitrary.

  The first display unit 41A and the second display unit 41B have different screens. Here, it is assumed that the screen size (screen size) of the first display unit 41A is larger than the screen size of the second display unit 41B. For example, the screen size of the first display unit 41A is 21 inches, and the screen size of the second display unit 41B is 14 inches. In particular, the second display unit 41B may be a small display device such as a pen tablet.

  Even when the same medical information is displayed under the same conditions (ratio of display size to screen size), if it is displayed on a display device having a large screen size, the influence on the light environment around the device becomes large. This embodiment addresses such a situation.

  The display selection unit 31a selects a display device that displays the medical information 32b, and displays the medical information 32b on the display device. The display device for displaying the medical information 32b is selected by the operator operating the operation unit 42, for example. Based on the operation signal from the operation unit 42, the display selection unit 31a controls the selected display device to display the medical information 32b.

  In this way, instead of selecting the display device according to the operator's instruction, the display selection unit 31a may be configured to automatically select the display device. For example, a display device can be automatically selected according to the type of medical information 32b.

  As a specific example, for fine information such as a captured image, the first display unit 41A having a large screen size is selected, and information that can be grasped at a glance such as character string information or graph information is a small screen. The second display unit 41B having a size can be selected. This processing can be executed with reference to, for example, table information (stored in the storage unit 32 in advance) that associates the type of information with the display device.

  When the medical information 32b includes a plurality of information, the display selection unit 31a selects a display device for each information.

  The information classification unit 35 receives the selection result of the display device from the display selection unit 31a, and classifies the plurality of information included in the medical information 32b into the first group and the second group. At this time, the information classification unit 35 classifies the information displayed on the first display unit 41A into the first group, and classifies the information displayed on the second display unit 41B into the second group.

  An operation mode of the ophthalmic apparatus 30 will be described. The flowchart shown in FIG. 12 represents an example of the operation mode of the ophthalmologic apparatus 30.

  First, light environment information is input from the light environment input unit 2 (S41). It is assumed that the light environment information includes brightness information.

  The display selection unit 31a selects a display device that displays each piece of information included in the medical information 32b (S42).

  Next, the light environment determination unit 34 determines whether the brightness indicated in the brightness information of the light environment information is equal to or less than a threshold value (S43).

  When it is determined that the brightness exceeds the threshold value (S43: No), the main control unit 31 keeps the medical information 32b as it is (that is, without changing the pixel value) and the first display unit 41A and the second display unit. It is displayed on 41B (S47). This is the end of the process in this case.

  On the other hand, when it is determined that the brightness is equal to or less than the threshold value (S43: Yes), the information classification unit 35 receives the selection result from the display selection unit 31a and displays the information displayed on the first display unit 41A as the first. The information is classified into a group, and the information displayed on the second display unit 41B is classified into the second group (S44).

  Subsequently, the pixel value changing unit 36 inverts the gradation information of each piece of information classified into the first group (S45).

  The main control unit 31 causes the first display unit 41A to display each piece of information of the first group in which the gradation information is inverted, and each piece of information classified into the second group (information in which the pixel value is not changed). It displays on the 2nd display part 41B (S46). This is the end of the process in this case.

  According to such an ophthalmologic apparatus 30, since the pixel value of the information displayed on the display device having a large screen size among the plurality of display devices can be changed (inverted), the display can be made from the large display device. It is possible to reduce the emitted light. Thereby, adverse effects on the light environment such as a dark room can be reduced, and information can be displayed in a manner according to the light environment (particularly brightness) of the place where the medical practice is performed.

  In addition, it is possible to apply the arbitrary structures demonstrated in 1st Embodiment and its modification to the ophthalmologic apparatus which concerns on this embodiment.

1 is a schematic block diagram illustrating an example of an overall configuration of an embodiment of an ophthalmologic apparatus according to the present invention. It is a schematic block diagram showing an example of the hardware constitutions of embodiment of the ophthalmologic apparatus which concerns on this invention. It is a flowchart showing an example of the operation | movement aspect of embodiment of the ophthalmologic apparatus which concerns on this invention. It is the schematic showing an example of the display mode of medical information for demonstrating the operation | movement aspect of embodiment of the ophthalmologic apparatus which concerns on this invention. It is the schematic showing an example of the display mode of medical information for demonstrating the operation | movement aspect of embodiment of the ophthalmologic apparatus which concerns on this invention. 1 is a schematic block diagram illustrating an example of an overall configuration of an embodiment of an ophthalmologic apparatus according to the present invention. It is a flowchart showing an example of the operation | movement aspect of embodiment of the ophthalmologic apparatus which concerns on this invention. It is a flowchart showing an example of the operation | movement aspect of embodiment of the ophthalmologic apparatus which concerns on this invention. 1 is a schematic block diagram illustrating an example of an overall configuration of an embodiment of an ophthalmologic apparatus according to the present invention. It is a flowchart showing an example of the operation | movement aspect of embodiment of the ophthalmologic apparatus which concerns on this invention. 1 is a schematic block diagram illustrating an example of an overall configuration of an embodiment of an ophthalmologic apparatus according to the present invention. It is a flowchart showing an example of the operation | movement aspect of embodiment of the ophthalmologic apparatus which concerns on this invention.

Explanation of symbols

1, 10, 20, 30 Ophthalmology apparatus 2 Optical environment input unit 3 Control unit 31 Main control unit 31a Display selection unit 32 Storage unit 32a Classification information 32b Medical information 33 Information processing unit 34 Optical environment determination unit 35 Information classification unit 36 Pixel value Change unit 37 Statistical value calculation unit 38 Display size determination unit 4 User interface 41, 41A, 41B Display unit 42 Operation unit

Claims (19)

An ophthalmologic apparatus comprising display means for displaying medical information,
Input means for inputting light environment information representing the light environment around the device;
Control means for changing a pixel value of a pixel forming medical information based on the light environment information, and displaying the medical information in which the pixel value is changed on the display means;
An ophthalmologic apparatus comprising: The light environment information includes brightness information indicating brightness around the device,
The control means includes determination means for determining whether or not the brightness indicated in the brightness information is equal to or less than a predetermined threshold, and when it is determined that the brightness is equal to or less than the predetermined threshold, at least a part of the medical information Changing the pixel value of the pixel, and displaying the medical information with the changed pixel value on the display means;
The ophthalmic apparatus according to claim 1. The pixel value of the pixel of the medical information includes gradation information represented by a value within a predetermined gradation range,
The control means inverts gradation information of at least some of the pixels of the medical information in the gradation range when the determination means determines that the gradation information is equal to or less than a predetermined threshold, and the gradation information is inverted. Display the medical information on the display means,
The ophthalmic apparatus according to claim 2. The medical information includes a plurality of information,
The control means includes a storage means for preliminarily storing classification information obtained by classifying information types included in medical information into a first group and a second group, and a classification means for classifying the plurality of information based on the classification information. And changing the pixel value of the information classified into the first group, the information of the first group in which the pixel value is changed, and the information classified into the second group into the display means Display,
The ophthalmologic apparatus according to claim 1, wherein the ophthalmologic apparatus is provided. The medical information includes a plurality of information,
The control means includes a storage means for preliminarily storing classification information obtained by classifying information types included in medical information into a first group and a second group, and a classification means for classifying the plurality of information based on the classification information. Inverting the gradation value of the information classified into the first group, and displaying the information of the first group in which the gradation value is inverted and the information classified into the second group Display on the means,
The ophthalmologic apparatus according to claim 3. The classification information classifies character string information and / or graph information into the first group.
The ophthalmologic apparatus according to claim 4 or 5, characterized by the above. The classification information classifies images taken of the eye to be examined into the second group.
The ophthalmologic apparatus according to claim 4 or 5, characterized by the above. The classification information classifies monochrome images obtained by photographing the eye to be examined into the first group, and color images obtained by photographing the eye to be examined is classified into the second group.
The ophthalmologic apparatus according to claim 4 or 5, characterized by the above. The medical information includes a plurality of information,
The control means calculates a statistical value of the pixel value for each of the plurality of pieces of information, and classifies the plurality of pieces of information into a first group and a second group based on the magnitude of the statistical values. And changing the pixel value of the information classified into the first group, and causing the display means to display the information of the first group in which the pixel value is changed and the information classified into the second group ,
The ophthalmologic apparatus according to claim 1, wherein the ophthalmologic apparatus is provided. The medical information includes a plurality of information,
The control means calculates a statistical value of gradation information for each of the plurality of information, and classifies the plurality of information into a first group and a second group based on the magnitude of the statistical value And the display means for inverting the gradation information of the information classified into the first group, the information of the first group in which the gradation information is inverted, and the information classified into the second group To display
The ophthalmologic apparatus according to claim 3. The classification means obtains, as the statistical value, the number of pixels having gradation information equal to or greater than a predetermined value among a plurality of pixels forming each of the plurality of information, and information indicating that the number of pixels is equal to or greater than a predetermined number Are classified into the first group, and information less than the predetermined number is classified into the second group,
The ophthalmic apparatus according to claim 10. Medical information includes a plurality of information,
The control means calculates a statistical value of the pixel value for each of the plurality of pieces of information, compares the plurality of calculated statistical values, and puts the pieces of information into the first group and the second group. Classification means for classifying, changing a pixel value of the information classified into the first group, the information of the first group in which the pixel value is changed, and the information classified into the second group Display on the display means,
The ophthalmologic apparatus according to claim 1, wherein the ophthalmologic apparatus is provided. The medical information includes a plurality of information,
The control means calculates a statistical value of the gradation information for each of the plurality of information, compares the calculated plurality of statistical values, and determines the plurality of information as a first group and a second group. Information of the first group obtained by inverting the gradation information of the information classified into the first group, and the information classified into the second group. Is displayed on the display means.
The ophthalmologic apparatus according to claim 3. The control means changes the pixel value of the medical information only when the display size of the medical information is a predetermined size or larger when displaying the medical information on the display means.
The ophthalmologic apparatus according to claim 1, wherein the ophthalmologic apparatus is provided. The control means inverts the gradation information of the medical information only when the display size of the medical information is a predetermined size or more when displaying the medical information on the display means.
The ophthalmologic apparatus according to claim 3. The display means includes a plurality of display devices having different screen sizes,
The control means changes the pixel value of the medical information only when the medical information is displayed on a display device whose screen size is a predetermined size or more.
The ophthalmologic apparatus according to claim 1, wherein the ophthalmologic apparatus is provided. The display means includes a plurality of display devices having different screen sizes,
The control means inverts the gradation value of the medical information only when the medical information is displayed on a display device having a screen size equal to or larger than a predetermined size.
The ophthalmologic apparatus according to claim 3. The input means includes an operation means for inputting the light environment information.
The ophthalmic apparatus according to claim 1. The input means includes detection means for detecting the light environment around the apparatus and generating the light environment information.
The ophthalmic apparatus according to claim 1.