KR102126065B1 - digital slit lamp microscope of portable type - Google Patents

Abstract

The present invention relates to a portable digital slit lamp microscope, and more specifically, to be miniaturized and portable, so it is possible to test not only children and people with disabilities, but also animals, which were difficult to test with a conventional slit lamp microscope, and patterned and automated The present invention relates to a portable digital slit lamp microscope capable of realizing a patient-centered medical environment by increasing reliability of test results and enabling remote medical support through digitization.
The portable digital slit lamp microscope of the present invention has a main body having a constant space therein, with an open front facing the eye, an illumination optical unit installed inside the body and irradiating a slit beam to the eye, inside the main body It is equipped with an observation camera that installs and photographs the eyeball to generate an eyeball image, and controls the operation of the lighting optics and the observation camera, and includes a control unit that outputs the eyeball image as an image through an external display installed outside the main body.

Description

Digital slit lamp microscope of portable type

The present invention relates to a portable digital slit lamp microscope, and more specifically, to be miniaturized and portable so that it is possible to test not only children and people with disabilities, but also animals, which were difficult to inspect with a conventional slit lamp microscope, and patterned and automated The present invention relates to a portable digital slit lamp microscope capable of realizing a patient-centered medical environment by increasing reliability of test results and enabling remote medical support through digitization.

Ophthalmic diseases increase in prevalence with increasing age, and recently, due to the increase in the elderly population in accordance with the aging age, there are an increasing number of patients complaining of visual dysfunction and discomfort due to eye diseases.

Cataracts, glaucoma, diabetic retinopathy, age-related macular degeneration, and obstructive MyBom gland dysfunction can be diagnosed by visiting an ophthalmologist. Ophthalmologists often come to the state. Missing the time of treatment leads to blindness or restoration through treatment, and incidences of cataracts that can be treated surgically increase the incidence of complications.

Various ophthalmic examination equipments have been developed and used to diagnose such ophthalmic diseases. Typical inspection equipment includes a slit lamp microscope, a fundus camera, and a meibomian gland measuring device, and it examines the anterior part of the eye, the lens, the retina, and the inside of the eyelid, and cataract, glaucoma, diabetic retinopathy, age-related macular degeneration, and obstructive meibomian gland function Ophthalmic diseases such as abnormalities can be diagnosed.

Among the ophthalmic examination equipments, a slit lamp microscope is an ophthalmic device that examines the condition of the eyeball by irradiating a slit beam (slit beam), which is a vertically long and thin light, to the eye to observe the optical cutting surface of the eyeball. . Using a slit lamp microscope, the width, length, and/or angle of the slit beam can be adjusted to examine the condition of the eyelids, conjunctiva, cornea, lens, and vitreous body, as well as the fundus using an accessory device. have. In addition, a slit lamp microscope may be used for photographing the anterior segment, measuring the depth of the anterior chamber, and the thickness of the cornea and lens, and it is also widely used in ophthalmology hospitals and the like, as it is also possible to mount a tonometer.

The conventional slit lamp microscope shown in FIG. 1 is used in a state where a patient sitting in a chair in an upright position is in close contact with the chin and forehead and fixed. While the patient's face is fixed, the slit beam is irradiated to the eyeball to observe the optical cut surface formed on the eyeball. The slit lamp microscope is composed of an illumination optical unit 10 for irradiating a slit beam to the eye as shown in FIG. 2 and an observation optical unit 30 for observing the optical cut surface formed in the eye.

The illumination optical unit 10 uniformly controls the illuminance of the light source 11 irradiating the slit beam, the slit beam irradiated from the light source 11, and the collimator lens 12 that focuses the slit beam, and the slit beam. A relay lens (relay lens) for converging the slit beam 13 passing through the slit 13 and the slit beam passing through the slit 13 to form a slit for converting into a slit shape, 14), a cylindrical illumination unit housing 15, and includes a prism 20 that reflects (refracts) the focused slit beam to guide the eye 1. In addition, the observation optical unit is an objective and magnification lens unit 32 for enlarging the slit beam image formed in the eye 1, an eyepiece for observing the image of the eye 1 in the human eye. It includes an eyepiece (34) made of.

The above-described conventional slit lamp microscope has the following problems.

First, there is a problem in that it is difficult for a child or a disabled person to have a medical examination because the patient who wants to be examined needs to maintain the posture in a fixed state. In addition, in the case of animals, human control is impossible, so examination is almost impossible. Therefore, there is a need for new equipment capable of diagnosing people or animals that cannot fix the forehead and chin.

In addition, there is a conventional portable slit lamp microscope, however, since it is necessary to adjust the distance between one eye and the eyelid and the lighting direction with the other hand, it is difficult to obtain an accurate image and thus it is rarely used in clinical practice.

Second, since it is difficult to maintain the place where the slit lamp microscope is installed in a dark room, there is a problem that the image observed with the microscope is blurred.

Third, the conventional slit lamp microscope has a problem that it is difficult to support telemedicine because it is an analog method.

Fourth, it is difficult to obtain a standardized image because the photographed appearance varies depending on equipment and inspectors.

1. Republic of Korea Patent Publication No. 10-2011-0108065: a slit lamp microscope including a diffuser assembly 2. Republic of Korea Patent No. 10-1817037: Universal ophthalmic imaging device using a mobile device

The present invention was created to improve the above-mentioned problems, and it is possible to miniaturize and carry it, so that the inspection equipment can be fixed to a patient, and thus portable digital capable of examining not only children or people with disabilities, but also animals that were difficult to examine with a conventional slit lamp microscope. The purpose is to provide a slit lamp microscope.

In addition, the object of the present invention is to provide a portable digital slit lamp microscope capable of realizing a patient-centered medical environment by increasing the reliability of test results by patterning and automating the test method and enabling remote medical support through digitization.

A portable digital slit lamp microscope of the present invention for achieving the above object is in contact with the face so that the open side faces the eyeball, and a main body is formed with a constant space therein; An illumination optical unit installed inside the main body to irradiate a slit beam to the eyeball; An observation camera installed inside the body to photograph an eyeball to generate an eyeball image; And a control unit controlling the operation of the illumination optical unit and the observation camera and outputting the eyeball image as an image through an external display installed outside the main body.

It further comprises; an eye protrusion detection means for detecting the degree of protrusion of the eye so as to maintain a constant distance between the eye and the observation camera.

It is further provided with; a transfer means for moving the observation camera according to the degree of protrusion of the eyeball detected by the eye protrusion detection means.

It is installed inside the main body and further includes an internal display for outputting an image toward the eyeball.

The observation camera is provided in a number of different focal lengths.

The illumination optical unit includes a slit portion in which at least two slits having different widths are formed, and a light source irradiating light toward the slit.

The observation cameras are provided as a pair of left and right observation cameras spaced apart from side to side and photographing the eyes from different angles.

The external display separately outputs the left image outputting the eye image photographed by the left observation camera toward the examiner's left eye and the right image outputting the eye image photographed by the right observation camera towards the examiner's right eye.

And an external terminal that receives the eyeball image through a wired/wireless communication network and controls the illumination optical unit and the observation camera.

The interior of the main body is divided into a left space part corresponding to the left eye and a right space part corresponding to the right eye so that the both eyes of the subject can be simultaneously or sequentially inspected, and the illumination optical part and the observation camera are the left space part and the right side. Each is installed in the space.

The present invention enables miniaturization and portability so that the examination equipment can be fixed to the patient, so that it is possible to examine children, the disabled, and the elderly who have been difficult to examine with a conventional slit lamp microscope, and improve the convenience of the examinee and examiner.

In addition, the present invention can increase the reliability of test results through patterning and automation of test methods, and can provide remote medical support through digitization to realize a patient-centered medical environment.

In addition, the present invention can pattern eye examinations by sequentially obtaining multiple image images while varying the focal length of the camera and the width, angle, and luminosity of the slit beam. Different angles can solve the problem of difficult comparison of images. In addition, if the examination is patterned, image data can be shared, and an atmosphere for telemedicine and medical standardization can be created. In addition, it is easy to automate the artificial intelligence (AI) analysis of the acquired image data.

In addition, the present invention can also be useful in animal hospitals and the like, as it is possible to perform an eye examination of animals such as mammals.

1 is a photograph showing the state of a conventional slit lamp microscope,
Figure 2 is a schematic view showing the configuration of the slit lamp microscope of Figure 1,
3 is a perspective view showing a state of a portable digital slit lamp microscope according to an embodiment of the present invention,
Figure 4 is a plan view schematically showing the interior of Figure 3,
5 is a side view schematically showing the interior of FIG. 3,
6 is a block diagram showing the configuration of FIG. 3,
7 is a block diagram showing the configuration of a portable digital slit lamp microscope according to another embodiment of the present invention,
8 is a plan view schematically showing the interior of a portable digital slit lamp microscope according to another embodiment of the present invention,
9 is an image of the appearance of the eyeball with the side camera applied to Figure 8,
10 is a plan view schematically showing the interior of a portable digital slit lamp microscope according to another embodiment of the present invention,
11 is a view showing the use of the portable digital slit lamp microscope of FIG. 10,
12 is a view showing an observation camera applied to a portable digital slit lamp microscope according to another embodiment of the present invention,
13 is an image showing the focal length of the observation camera of FIG. 12,
14 is an image of the eyeball taken with the observation camera of Figure 12,
FIG. 16 is an eyeball image taken in combination with a slit beam having a different width and several observation cameras having different focal lengths.

Hereinafter, the portable digital slit lamp microscope of the present invention will be described in detail with reference to the accompanying drawings.

3 to 6, the portable digital slit lamp microscope 5 of the present invention is a main body 40 and an illumination optical unit 50 installed inside the main body 40 to irradiate a slit beam to the eyeball, and the main body (40) is installed inside the observation camera (60) that generates an image of the eyeball by photographing the eyeball, and controls the operation of the lighting optics (50) and the observation camera (60), and controls the operation of the eyeball image through an external display (70). It has a control unit 100 for outputting as an image.

The main body 40 has a constant space formed therein, and has a structure in which one side is open. The body 40 is in contact with the face with one side facing the eyeball.

The main body 40 is preferably miniaturized to be portable. The body 40 may be made of a structure that can be worn on a face in a wearable manner. Alternatively, the body may be made of a structure that can be used while being held by the examiner by hand and in close contact with the front of the face.

Hereinafter, a body 40 of a wearable type that can be worn on a face will be described as an example. The wearable body 40 is capable of inspecting the eye while wearing it on the face, thereby greatly improving convenience for testers and users.

In the illustrated example, the main body 40 is positioned at the front of the face and is formed in a structure capable of covering both eyes. The body 40 has an empty space formed therein, and has a structure in which the front side is blocked and the rear side is open.

Since the main body 40 is in contact with the entire face of the subject, the inside of the main body 40 is blocked from the outside, so that the inside of the main body 40 can maintain a dark state. Accordingly, a clear eye image can be obtained, and the compliance of the test subject can be increased.

And, if necessary, a door that can be opened and closed is installed on the side surface, the upper surface, or the lower surface of the main body 40 to open the inside of the main body 40 to the outside. In addition, the main body may be configured to install and observe an upper and lower eyelid conjunctiva by installing a device capable of fixing the eyelids upside down or in an inverted state.

Fixing means may be provided on the main body 40 so that the main body 40 can be fixed to the face. As an example of the fixing means, a hair band 43 is shown. The hair band 43 is coupled to the patient's head to be detachable. Instead of the hair band 43, various fixing means such as a helmet and a band can be applied to fix the main body 40 to the face.

It is preferable that the rear surface of the main body 40 in contact with the face is bent in a curved shape in order to increase adhesion to the face. In addition, a cushion portion 41 formed of a flexible material and contacting the face may be provided on the rear edge of the body 40.

The interior of the body 40 may be divided into a left space portion 45 and a right space portion 47 so as to simultaneously or sequentially examine both eyes of the subject. The left space portion 45 is an area corresponding to the left eye of the subject, and the right space portion 47 is a space corresponding to the right eye of the subject. The illumination optical part 50 and the observation camera 60 are respectively installed in the left space part 45 and the right space part 47.

Thus, by installing the illumination optical unit 60 and the observation camera 60 on the left and right sides of the main body 60, both eyes of the subject can be simultaneously inspected or both eyes can be sequentially inspected. In this case, the distance between the illumination optical part of the left space part and the illumination optical part of the right space part and the distance between the observation camera of the left space part and the observation camera of the right space part may be adjusted according to the binocular distance of the subject.

And, as shown, the main body may be formed to cover only one eye of both eyes. In this case, one illumination optical unit and one observation camera are installed inside the main body. Such a body may be worn on the face to cover any one eye, and then examined, and then moved to the position of the body again, worn on the face to cover the other eye, and then examined.

On the other hand, although not shown, the main body 40 may be provided with a lighting lamp for adjusting the illumination inside. The lighting lamp is applied with LEDs that can be adjusted step by step. The interior of the body can be kept bright or dark by the lighting lamp.

The illumination optical unit 50 and the observation camera 60 are installed inside the main body 40. As described above, the lighting optical unit 50 and the observation camera 60 are respectively installed in the left space portion and the right space portion.

The illumination optical unit 50 irradiates a slit beam (slit beam) to the eye to be examined so that the optical cut surface of the eye can be observed.

The illumination optical unit 50 of the illustrated example is a method in which the length and width of the slit beam and the irradiation angle are fixed. The illumination optical unit 50 is provided in the optical housing 51, the light source (not shown) installed inside the optical housing 51, and is installed inside the optical housing 51 to uniformly illuminate the light irradiated from the light source It is provided with a lens (not shown) for adjusting and focusing light, and a slit portion provided on the front surface of the optical housing 51 and having a plurality of slits 53 formed thereon. If necessary, a color filter for adjusting the color of the slit beam, a relay lens for focusing the slit beam passing through the slit, etc. may be further provided.

The plurality of slits 53 are formed to have different widths. The slits 53 are arranged to face the eyeball. A light source corresponding to each slit 53 is installed inside the optical housing 51. LED can be used as a light source. As a plurality of light sources are sequentially emitted by the control unit 100, slit beams having different lengths and widths may sequentially illuminate the eyes to obtain different eye images. In this way, the inspection can be patterned.

The above-described illumination optical unit 50 can simplify the configuration because there is no need to be provided with a control device for mechanically adjusting the width and length of the slit beam, the irradiation angle.

On the other hand, of course, the illumination optical unit can apply a conventional structure that can freely mechanically adjust the length and width of the slit beam, the irradiation angle, and the light intensity.

The observation camera 60 is installed inside the main body 40. In the illustrated example, the observation camera 60 is installed on the top of the optical housing 51. Therefore, the illumination optical unit 50 and the observation camera 60 may be integrally moved by a transfer means to be described later.

The observation camera 60 photographs the eyeball to generate an eyeball image. A high-resolution digital camera is used as the observation camera 60. The eyeball image photographed by the observation camera 60 is output to the external display 70 through the control unit 100. The observation camera 60 can use a high-functionality camera that can automatically adjust the focal length, exposure, and the like.

The present invention may be provided with an eye protrusion detection means for sensing the degree of protrusion of the eye so as to maintain a constant distance between the eye and the observation camera (60).

The degree of protrusion of the eyeball varies from person to person. Therefore, it is necessary to maintain the position of the eyeball and the observation camera at a certain distance by moving the observation camera back and forth according to the degree of protrusion of the eyeball.

As the eye protrusion detection means, a side camera 65 capable of photographing the side of the eye may be used as shown in FIG. 8. The side camera 65 is installed inside the side of the main body 40. 9 shows an image photographed through the side camera 65. Through the side image of the eyeball photographed from the side camera 65, the control unit 100 can determine the apex position of the eyeball, and accordingly move the observation camera 60 to adjust the distance between the eyeball and the observation camera 60 . In addition, a sensor capable of measuring the distance from the eyeball may be used as an eyeball detection means.

The transfer means 80 is provided to move the observation camera 60 in the front-rear direction. The transfer means 80 moves the observation camera 60 under the control of the control unit according to the degree of protrusion of the eyeball detected by the eye protrusion detection means.

Various actuators can be used as the transfer means 80. In the illustrated example, a linear motor is applied as a transport means. A linear motor consists of a structure in which a mover is coupled to a stator deployed and deployed in a straight line, and when power is supplied, the mover performs a linear motion. This linear motor has an advantage of miniaturization and position control.

The linear motor is installed on the bottom surface of the main body 40. The optical housing 51 of the illumination optical unit 50 is coupled to the mover of the linear motor, and the observation camera 60 is installed on the optical housing 51. Therefore, the illumination optical unit 50 and the observation camera 60 are integrally moved together by the transfer means 80.

The external display 70 for outputting an eyeball image as an image is installed outside the main body 40. For example, it may be installed on the front of the body 40. Through the external display 70, the inspector can observe the eye condition of the subject being photographed in real time with the observation camera, so that the fixed position can be easily grasped when the body 40 is fixed to the subject's face. In addition, since an eyeball image for inspection photographed with the observation camera 70 is output through an external display, the examiner can diagnose the eyeball through the screen of the external display. The external display may enlarge or reduce the image according to the user's operation.

One or two external displays 70 may be installed. The external display outputs an eyeball image photographed by an observation camera as an image through control of the controller 100. When only one external display is installed, an image of the left eye and an image of the right eye may be output by dividing the screen of the display from side to side. When two external displays 70 are installed, the image of the left eye is output to one external display, and the image of the right eye is output to the other external display.

In addition, the external display may be installed separately from the main body in addition to being integrally installed with the main body. For example, the external display can be implemented as a monitor installed in the laboratory. Also, the external display may be implemented as a VR device as shown in FIG. 11.

An internal display 75 may be installed inside the main body. The internal display 75 outputs an image toward the eye so that the examinee can keep an eye on it. The internal display 75 can focus the patient to fix the eye and move the eye according to the intention of the examiner.

The control unit 100 controls the operation of the illumination optical unit 50 and the observation camera 60, and outputs an eyeball image photographed by the observation camera 60 as an image through the external display 70.

The control unit 100 is installed inside the main body 40. Unlike this, the control unit 100 may be installed outside the main body 40 by being electrically connected to the main body 40.

The control unit 100 comprises a micro process and various driving circuits to control the operation of the present invention. In addition, the control unit 100 analyzes and processes various image images input from the observation camera 60. In addition, the controller 100 may store a video image and various result values in a memory unit and output it to an external device for display.

Meanwhile, the present invention may further include a power supply unit 110 for providing power, a memory unit 120 for storing data, and an operation unit 130 for manipulation.

The power source 110 for providing power may use a battery installed in the main body 40. In addition, commercial power can be used as the power supply unit 110, and in this case, it can be connected to the main body using a power cable.

The memory unit 120 may be formed of various repositories for storing various image data and information. The memory unit 120 for storage may be a volatile memory, a nonvolatile memory, and a hard disk that may be installed in the main body 40. In addition, a storage medium existing outside the main body of the memory unit 120 may be used.

The operation unit 130 may be provided outside the main body 40. The operation unit 130 may be provided as a key for setting a supported function including a power button or may be provided as a touch panel.

In addition, the present invention can be installed a speaker for voice guidance to the patient. The controller may guide the patient through the speaker with appropriate instructions for the examination process and request posture, gaze direction, and the like.

In addition, the present invention may further include a communication unit 140 for communication with the external terminal 150, as shown in FIG.

The communication unit 140 performs communication through a wired or wireless communication network. The communication unit 140 can communicate by wire or wireless. As a wireless communication network, WLAN (Wireless LAN) (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access), HSUPA, LTE, etc. can be used. As a short-range communication network for communication, Bluetooth, radio frequency identification (RFID), infrared data association (IrDA), ultra wideband (UWB), ZigBee, NFC, and the like can be used.

The communication unit 140 transmits various data to the external terminal 150 at a short or long distance, or receives data and control signals from the external terminal 150.

External terminals include a smart phone, a PDA (Personal Digital Assistant), a desktop, a tablet PC, and a notebook that can be applied to various wireless environments.

Remote medical support is possible through these external terminals and communication units. Therefore, it is possible to conduct remote consultations for mountainous areas, rural areas, and marginalized groups. Since the subject's eyeball image is transmitted in real time to an external terminal, the examiner can examine the eyeball at a remote location. In addition, of course, the inspector can operate the observation camera and the illumination optical unit through an external terminal.

Meanwhile, the observation cameras 61 and 63 may be provided as a pair spaced apart from side to side as shown in FIG. 10 so that the examiner can view the eye image as a stereoscopic image. A pair of observation cameras are divided into a left observation camera 61 and a right observation camera 63 for convenience of explanation. The left observation camera 61 and the right observation camera 63 are spaced apart from side to side to photograph one eyeball from different angles.

In this case, the external display is a left image that outputs an eye image photographed by the left observation camera 61 toward the examiner's left eye, and a right image that outputs an eye image photographed by the right observation camera 63 towards the examiner's right eye. Output separately. 11, the external display may be implemented as a VR (Virtual Reality) 160 device. In this case, the VR device 160 may be configured to enable short-range communication with the main body.

The examiner 1 may observe the eyeball of the examinee 3 through the image output from the VR apparatus 160 while the VR apparatus 160 is worn on the face. The image of the VR device 160 is divided into a left image and a right image. The eyeball image photographed with the left observation camera while the subject 3 is wearing the body 40 on the face is output to the left image of the VR device 160 through short-range communication, and the eyeball image photographed with the right observation camera is It is output as the right image of the VR device 160 through short-range communication. Therefore, the examiner 1 can observe the eye image as a three-dimensional image through the VR device 160, so that more accurate inspection is possible.

On the other hand, the present invention can be made of a number of observation cameras 61, 62, 63, 64 as shown in FIG. Many of these observation cameras are integrally modular. Multiple observation cameras have different focal lengths and can acquire various eye images with different depths. When the four observation cameras are divided into the first observation camera 61, the second observation camera 62, the third observation camera 63, and the fourth observation camera 64 for convenience of description, four observation cameras are shown in FIG. The focal length of is shown as an example. The focus of observation camera #1 is A, the focus of observation camera #2 is B, the focus of observation camera #3 is C, and the focus of observation camera #4 is configured to be located at D. Fig. 14 shows an image of an eyeball taken with four observation cameras having different focal lengths. 14, A is an observation camera No. 1, B is an observation camera No. 2, C is an observation camera No. 3, and D is an image taken with an observation camera No. 4. The image taken with the observation camera #1 shows the overall image of the eye because of its deep depth, and the observation cameras #2, #3, and #4 gradually show the image of the deep part of the eye, although the depth gradually becomes shallower.

When multiple observation cameras having different focal lengths are used as described above, various eye images having different depths can be acquired, so that a faster and more accurate inspection is possible.

Fig. 16 shows an eyeball image photographed using four observation cameras and an illumination optical unit in which a plurality of slits are formed.

The slits formed in the illumination optical part were divided from L1 to L15 as shown in FIG. 15 according to the width. L1 to L7 are formed to the left of L8 located at the center, and L9 to L15 are formed to the right of L8. The slit beam irradiated through L1 to L7 is inclined at an angle toward the eyeball. In addition, the slit beam irradiated through L9 to L15 is also inclined at an angle toward the eyeball. The angle formed by the slit beam irradiated through L1 to L7 is represented by +, and the angle formed by the slit beam radiated through L9 through L15 is denoted by -.

The photographing order was set as shown in Table 1 below through a combination of four observation cameras (Nos. 1 to 4) constructed as shown in FIG. 12 and slit beams having different widths shown in FIG. 15.

order Slit beam Observation camera Beam width Beam angle Beam brightness Eye image One L8 no. 1 very wide 0° very low a 2 L1 number 3 wide +45° low b 3 L5 No.2 wide +25° low c 4 L15 number 3 wide -45° low d 5 L11 No.2 wide -25° low e 6 L4 number 3 narrow +30° mid f 7 L12 number 3 narrow -30° mid g 8 L7 No.2 very narrow +10° high h 9 L7 number 3 very narrow +10° high i 10 L7 Number 4 very narrow +10° high j

An eyeball image obtained by photographing the eyeball in the same order as in Table 1 is shown in FIG. 16. 16, it can be seen that various eye images can be obtained by combining several observation cameras having different focal lengths and various types of slit beams having different widths, angles, and luminosities.

When the eye examination is patterned by programming so that it can be photographed as in the above procedure, it is possible to solve the problem that it is difficult to compare images due to different lighting and angles depending on the inspection equipment and the examiner. In addition, if the examination is patterned, image data can be shared, and telemedicine and medical standardization are possible. In addition, it is easy to automate the artificial intelligence (AI) analysis of the acquired image data.

On the other hand, the present invention allows a simple visual inspection by outputting the visual acuity chart through an internal display. In addition, it is possible to measure the corneal refractive power (K value) by shining and photographing the keratoscopic mire on the internal display. In addition, corneal topography can be examined and corneal size can be measured automatically.

Above, the present invention has been described with reference to one embodiment, but this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent embodiments are possible therefrom. Therefore, the true protection scope of the present invention should be defined only by the appended claims.

40: main body 50: lighting optics
51: optical housing 53: slit
60: observation camera 65: side camera
70: external display 75: internal display
80: transfer means 100: control unit

Claims (10)

A body in which a certain space is formed in contact with the face so that one side of the opened faces the eyeball;
An illumination optical unit installed inside the main body to irradiate a slit beam to the eyeball;
An observation camera installed inside the body to photograph an eyeball to generate an eyeball image;
The control unit controls the operation of the illumination optical unit and the observation camera, and outputs the eyeball image as an image through an external display installed outside the main body.
A portable digital slit lamp microscope further comprising: an ocular protrusion detection means for sensing the degree of protrusion of the eye so as to maintain a constant distance between the eye and the observation camera. delete The portable digital slit lamp microscope according to claim 1, further comprising a transfer means for moving the observation camera according to the degree of protrusion of the eye detected by the eye protrusion detection means. The portable digital slit lamp microscope according to claim 1, further comprising an internal display installed inside the main body to output an image toward the eyeball. The method of claim 1, wherein the observation camera is a portable digital slit lamp microscope, characterized in that provided with a number of different focal lengths. The portable optical slit lamp microscope of claim 1, wherein the illumination optical unit includes a slit portion having at least two slits having different widths, and a light source irradiating light toward the slit. A body in which a certain space is formed in contact with the face so that one side of the opened faces the eyeball;
An illumination optical unit installed inside the main body to irradiate a slit beam to the eyeball;
An observation camera installed inside the body to photograph an eyeball to generate an eyeball image;
The control unit controls the operation of the illumination optical unit and the observation camera, and outputs the eyeball image as an image through an external display installed outside the main body.
The observation camera is a portable digital slit lamp microscope, characterized in that it is provided as a pair of left and right observation cameras that are spaced apart from the left and right to shoot the eyes from different angles. The method of claim 7, wherein the external display is a left image outputting the eye image photographed with the left observation camera toward the examiner's left eye, and a right image outputting the eye image photographed with the right observation camera towards the examiner's right eye. Portable digital slit lamp microscope characterized in that the output to separate. The portable digital slit lamp microscope of claim 1, further comprising an external terminal that receives the eyeball image through a wired/wireless communication network and controls the illumination optical unit and the observation camera. The method according to claim 1, wherein the inside of the main body is divided into a left space part corresponding to the left eye and a right space part corresponding to the right eye so as to simultaneously or sequentially examine both eyes of the subject,
The illumination optical unit and the observation camera are portable digital slit lamp microscopes, characterized in that respectively installed in the left space portion and the right space portion.

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