CN101185016A - Method and device for delivering visual stimuli with head mounted display during vision training - Google Patents
Method and device for delivering visual stimuli with head mounted display during vision training Download PDFInfo
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Abstract
A head mounted display for diagnosing or training vision of a subject. In one embodiment, the head mounted display includes a first display that presents a first visual image to a first eye of the subject in an identified position of regard with respect to a specified zone in the field of view of the subject. This embodiment may also include a second display that presents a second visual image to a second eye of the subject in an identified position of regard with respect to a specified zone in the field of view of the subject. This embodiment may also include an anterior support section coupled to the first and second displays, the anterior support section orienting the display in front of the eyes of the subject and may also include a posterior support section coupled to the anterior support section.
Description
The application requires in the U.S. Provisional Patent Application sequence number No.60/666 of submission on March 30th, 2005,455 and the U.S. Provisional Patent Application sequence number No.60/763 that submits on January 31st, 2006,589 right of priority, these two applications all are included in here by reference.
Technical field
The present invention relates to is to comprise that have dysopia patient's the object of (vision impairment) provides the system and method for visual exercise.Especially, the present invention is directed to the head mounted display of wearing to this object the part of visual stimulus as visual exercise is provided.
Background technology
The purpose of therapeutic visual exercise is to improve dysopia patient's visual performance by the vision systems that adopts visual stimulus excitation patient.For example, as in U.S. Patent No. 6,664,356 and U. S. application No.10/503, put down in writing in 869, introduce for the zone of transition of human vision system and/or not the visual stimulus in impaired vision district can improve the eyesight of object, these two applications are included in here by reference.Reach " zone of transition " used in any appended claim here, refer to and have degeneration eyesight or remaining visual performance or the impaired zone of part vision system.The impaired vision district does not refer to the zone that seems not have the defects of vision in the visual field of object.Be discussed below other application of visual exercise.This training can be carried out on the personal computer of family expenses, divides the training of the ground execution setting-up time course of treatment (for example hour) according to schedule.
For the head of identifying object position and direction with respect to display, described display is used to present visual stimulus and suitable district or the zone in the visual field of incentive object suitably, previous training therapy depend on object with he or she stare and be fixed on the certain location.Keep after one period considerable time on unsupported, fixing position, the propensity that the people will move may cause the misalignment of visual stimulus with respect to the object visual field.This misalignment may limit the training validity of the course of treatment.Even subject attempts is fixed the position of his head with respect to display, but it may be difficult discerning correct position, especially for the personal object beyond clinical.In addition, the visual field of the relative position of display and object is correctly aimed to be needed a large amount of time.
Summary of the invention
One embodiment of the present of invention are used to diagnose or the head mounted display of the eyesight of training objects at a kind of.The head mounted display of present embodiment comprises the device that is used for forming according to the current characteristic of the eyes of object visual pattern, and the device that is used for visual pattern is shown to the eyes of object.The head mounted display of present embodiment also comprises and is used for being used for the device that device shown is installed in eyes the place ahead of object with described.This device that is used to install comprises the sensor of the position that is used to follow the tracks of eyes.The head mounted display of present embodiment also comprises the device that is used for head mounted display is connected to the head of object.
An alternative embodiment of the invention is used to diagnose or the head mounted display of the eyesight of training objects at a kind of.The head mounted display of present embodiment comprises first display, and first display presents first visual pattern for first eyes of object on the recognizing site relevant with the appointed area within the object visual field.The head mounted display of present embodiment also comprises second display, for second eyes of object present second visual pattern, wherein first visual pattern is different with second visual pattern on the recognizing site relevant with the appointed area within the object visual field for second display.The head mounted display of present embodiment also comprises: be connected to the preceding support component that first and second displays connect, described preceding support component is positioned at display in the place ahead of object eyes; And the back support component that is connected with preceding support component.
An alternative embodiment of the invention is used to diagnose or the equipment of the eyesight of training objects at a kind of.The equipment of present embodiment comprises head mounted display and the processor of communicating by letter with this display, and this processor produces the visual stimulus that is presented by display, and this processor is configured to produce visual stimulus based on the current characteristic of eyes.
In another one embodiment of the present invention, a kind of system that is used for the training objects eyesight is disclosed.The system of present embodiment comprises the display that is used for presenting to individual's eyes visual pattern, and this display is allowed the visual field between 40 to 60 degree.The system of present embodiment also comprises: preceding support component is used for display is positioned at the place aheads of the eyes of object; And the back support component, be used for positioning with respect to the head of display to object.In this system,, come the eyesight of training objects by on display, presenting visual stimulus.
An alternative embodiment of the invention is at a kind of head mounted display that is used to diagnose or treat the eyesight of the object with head.The head mounted display of present embodiment comprises processor, and its current characteristic according to first eyes of object forms first visual pattern.The head mounted display of present embodiment also comprises: first display, and its first eyes to object show first visual pattern; And support section, it is positioned at the place aheads of first eyes of object with first display, and this support section comprises the sensor of the position that is used to follow the tracks of first eyes.
The present invention can be used to for example zone of transition and/or the not impaired visual area of the vision system of training of human.As at U.S. Provisional Patent Application sequence number No.60/763, disclosed in 589, the present invention also can be used to one or more blind area of the vision system of training of human.In addition, as submit on January 31st, 2006, sequence number is No.11/343, disclosed in the U.S. Patent application 960, " Methods ForTreatment of Retinal Diseases " by name, the present invention also can be used to treat retinal disease, and this application is included in here by reference.
Description of drawings
By reference following detailed and accompanying drawing, with easier understanding aforementioned feature of the present invention, wherein:
Fig. 1 shows the skeleton view of head mounted display according to an embodiment of the invention;
Fig. 2 A-2C shows the several embodiment according to head mounted display of the present invention.Fig. 2 A shows virtual reality embodiment, and Fig. 2 B is safety goggles embodiment, and Fig. 2 C is glasses embodiment.
Embodiment
A plurality of embodiment of the present invention described here are at being used for the Apparatus and method for of training objects with the compensation dysopia.These embodiment can comprise the use of head mounted display, and this head mounted display positions and display image with respect to the eyes of display to object.Display presents the visual stimulus of being watched by object, and described stimulation causes the training for the impaired vision of object.At this, the head mounted display that will have sidepiece (side piece) is called " safety goggles ".
A special embodiment of the present invention as shown in Figure 1.Head mounted display 100 is shown as and comprises left display 110, right display 120, preceding support component 130 and back support component 140.Left side display 110 presents left visual pattern 115 to the left eye of object.Right display 120 presents right visual pattern 125 to the right eye of object.Preceding support component 130 is connected to left display 110 and right display 120, and left display 110 is positioned at the place ahead of object left eye, and right display 120 is positioned at the place ahead of object right eye.Although be used for head mounted display 100 be fixed to object head 150 other the device also within the scope of the invention, back support component 140 is connected to preceding support component 130, and head mounted display 100 is fixed to the head 150 of object.
Head mounted display 100 presents visual stimulus to object, so that the benefit of visual exercise to be provided by the given zone or the zone in the incentive object visual field.The zone that may be encouraged especially in the object visual field comprises zone of transition and/or the impaired vision district not in people's the vision system, and wherein term " zone of transition " and " not impaired vision district " define in the above.
In U.S. Patent No. 6,664, discussed the technology of visual exercise in 356 and U. S. application No.10/503,869, its content is included in here thus by reference.These training techniques and corresponding diagnostics are generally kept one lasting period with the head of object with respect to display.For example, at the visual diagnostic test period, course of treatment is general general divides three and repeats to finish on two hours time, and each repeats to continue general 30 minutes, and rest is arranged between the repetition.Same, for course of treatment of the eyesight of recovering to small part continuing general 30 minutes, treat twice every day, treated weekly six days.Therefore, for reducing or eliminating and specific head position is kept overtired that one period duration is associated, it is favourable utilizing head mounted display.In addition, head mounted display can alleviate overtired on the eyes of object.Fix and do not force.Allow staring of object to vacillate, and regulate and present to the current location of the image of object with the target compensation eyes.Can utilize for example ASL series 600 eye tracking instrument of Advance Science Laboratories production, come the current location of monitoring eye.
Head mounted display 100 is automatically and correctly for object presents visual stimulus, and the head position and the fixation point that do not need object to remain unchanged, and does not need the additional calibration to display.In other words, visual stimuli is based on the current characteristic of eyes.Current characteristic comprises the position of object eyes, the aligning that object is stared, and the known defect in the object visual field.Head mounted display 100 detects the position and the direction of left eye and right eye.Owing to provide automatic adjusting, so for object, test is to loosen more and comfortable experience for eyes.Can be easy to obtain the treatment benefit of visual exercise on portable set, object can be stayed at home or this portable set is used in the place of other expectation.
Head mounted display 100 reduces the possibility that occurs mistake in regulating display or head positioning equipment, and this mistake can cause not being the visual exercise of optimum.Because the crowd of the potential object of visual exercise comprises the considerable people that cognitive disorder is arranged, so the ease for use of the potential growth that is associated with embodiments of the invention and reliability provide the attractive potential advantages that exceed existing system.
Get back to embodiments of the invention shown in Figure 1, head mounted display 100 comprises preceding support component 130, and it is preferably by lightweight, firm material structure, and this material can be kept its shape and direction with respect to object header at any head position place.For example, preceding support component 130 can be constructed by acrylic acid or other lightweight polymeric material/synthetic material, and can comprise resilient material, the zone that support component 130 contacted with object header before this resilient material covered.
Although the embodiments of the invention shown in the figure utilize the back support component 140 of headband as head mounted display 100, support component 130 and other structure that do not have this element also meets head support before firm.Selectively, back support component 140 can be to be formed to have the rigid material of curvature, is attached on the ear of object to allow the mode with glasses.
In addition, back support component can comprise the system that is suitable for stimulating visual cortex when visual stimuli is carried out.The system that is suitable for this purpose can be as in U.S. Patent No. 6,926, and (Transcranial Magnetic Stimulation, TMS), it is depressed that it is commonly used to treatment for disclosed transcranial magnetic stimulation in 660.TMS excitation can be synchronous with visual stimuli, with realize to the zone of transition of determining by treatment, blind area or the neuronic optimal stimulus in the corresponding cortex in the impaired vision district zone not.
In one embodiment, head mounted display 100 can be one group of safety goggles 200 shown in Fig. 2 A.Safety goggles 200 is preferably lighttight, and from left eye and the right eye display image of inside surface to object.In another embodiment, head mounted display 100 can comprise display device 210, and this display device 210 is similar to the display device in night observation device or the reality-virtualizing game, shown in Fig. 2 B.In another embodiment, head mounted display can be similar to a pair of glasses 220, shown in Fig. 2 C.In this embodiment, image is projected on the inside surface in eyes the place ahead.In one embodiment, no matter the type of the display that uses, head mounted display all can comprise the display of allowing the visual field between 40 to 60 degree.In an example, this can realize as display device by adopting crooked display.
Head mounted display 100 is used to determine the direction of display, and this display presents the vision of visual stimulus with training objects.Left side display 120 is positioned in the place ahead of object left eye, and right display 130 is positioned in the place ahead of object right eye.Display image can be for example electroluminescent result of independent illumination, or the result of the LCD display that for example illuminated by ambient lighting of passive illumination.Near the display 130 of a left side is left sensor 160, and near the right display 140 is right sensor 170. Sensor 160 and 170 detects the position, angle of left eye and right eye respectively.Eye position information is delivered to for example processor of CPU 180, and it determines position and direction about left eye and right eye.
The fixation point that lacks the stationary positioned of head and lack appointment utilizes the automatic calibration of left display 110 and right display 120 and regulates continuously, although still can provide the training of expectation for left eye and right eye.As a result, CPU 180 can be configured to produce identical visual stimulus, and no matter the characteristic of staring of object and do not need calibrating display.
The method of head mounted display and use head mounted display can be devoted to the training of non-treatment and use.Head mounted display is may be particularly useful under the favourable situation in the quick visual identity of target.Non-limiting instance (for example comprises the athletic eyesight of training, the golfer) with improve hand-eye coordination or reaction time, in Military Application training (for example, helping improve the ability and the efficient of the target on the screen of identification equipment) and to aircraft flight person's training.
Further embodiment of the present invention is at equipment of before the eyesight of training objects the object eyesight status being diagnosed and method.In one embodiment of the invention, CPU 180 can produce the visual stimulus that will present on left display 110 and right display 120, is used for the eyesight status of diagnosis object.Can specially pre-configured head mounted display with by presenting left image 115 and right image 125 is carried out diagnostic tasks, thereby carry out this diagnostic task.Subsequently, according to other embodiment of the present invention that describe, can use diagnosis performance to produce to be used for the visual stimulus of training objects here.Be included in and carry out the corresponding method diagnosed before the training within the scope of the present invention.
All the above embodiments of the present invention are exemplary, and many for a person skilled in the art variations and to revise will be tangible.These all variations and modification drop within the scope of the present invention that limits as claims.
Claims (16)
1. head mounted display that is used to diagnose or train the eyesight of object with head, described head mounted display comprises:
Form the device of first visual pattern according to the current characteristic of first eyes of described object;
First device that shows described first visual pattern to first eyes of described object;
Described first device that will be used to show is installed in the device in the place ahead of first eyes of described object, and the described device that is used to install comprises the sensor of the position that is used to follow the tracks of described first eyes; And
Be used for described head mounted display is connected to the device of described object header.
2. head mounted display as claimed in claim 1 further comprises the device that shows second visual pattern to second eyes of object.
3. head mounted display as claimed in claim 2, wherein, described first visual pattern is different with described second visual pattern.
4. one kind is used to diagnose or the head mounted display of the eyesight of training objects, and described head mounted display comprises:
First display, its first eyes to object in the recognizing site relevant with the appointed area within the described object visual field present first visual pattern;
Second display, second eyes to object on the recognizing site relevant with the appointed area within the described object visual field present second visual pattern;
Be connected to the preceding support component of described first display and described second display, described preceding support component is positioned at described display in the place ahead of the eyes of described object; And
Be connected to the back support component of described preceding support component.
5. head mounted display as claimed in claim 4, wherein, described visual pattern is configured to present to described object the fixation point of the scope of selection.
6. head mounted display as claimed in claim 4, wherein, described back support component comprises headband.
7. head mounted display as claimed in claim 6, wherein, described back support component comprises the system that is suitable for stimulating the object visual cortex.
8. head mounted display as claimed in claim 4, wherein, described head mounted display is configured to the zone in the not impaired visual field of described object, provides optical stimulation to the zone and the blind area of described object outside the not impaired visual field of described object, and the eyesight of training in these zones one or more.
9. one kind is used to diagnose or the equipment of training objects eyesight, and described equipment comprises:
Head mounted display comprises the sensor of the position of at least one eyes that are used for tracing object; And
With the processor that described display is communicated by letter, described processor produces the visual stimulus that is presented by described display, and described processor is configured to produce described visual stimulus based on the current characteristic of eyes.
10. equipment as claimed in claim 9, wherein, described processor is configured to produce described visual stimulus based on a plurality of current characteristic of eyes.
11. equipment as claimed in claim 10, wherein, described processor is configured to produce the visual stimulus of the visual condition that is used to diagnose described object.
12. equipment as claimed in claim 10, wherein, described processor is configured to produce the visual stimulus of the eyesight that is used to train described object.
13. a system that is used for the training objects eyesight comprises:
Be used for presenting to individual's eyes the display of visual pattern, described display is allowed the visual field between 40 to 60 degree;
Before support component, be used for described display is positioned at the place aheads of the eyes of described object; And
Back support component is used for locating head with respect to described display;
Wherein, carry out training by on described display, presenting visual stimulus.
14. a head mounted display that is used to diagnose or train the eyesight of the object with head, described head mounted display comprises:
Processor forms first visual pattern according to the current characteristic of first eyes of described object;
First display shows described first visual pattern to first eyes of described object;
Support section is positioned at the place aheads of first eyes of described object with described first display, and described support section comprises the sensor of the position that is used to follow the tracks of described first eyes.
15. head mounted display as claimed in claim 1 further comprises second display, its second eyes to described object show second visual pattern.
16. head mounted display as claimed in claim 15, wherein, described first visual pattern is different with described second visual pattern.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US66645505P | 2005-03-30 | 2005-03-30 | |
| US60/666,455 | 2005-03-30 | ||
| US60/763,589 | 2006-01-31 |
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| CN101185016A true CN101185016A (en) | 2008-05-21 |
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| CNA2006800110132A Pending CN101185016A (en) | 2005-03-30 | 2006-03-30 | Method and device for delivering visual stimuli with head mounted display during vision training |
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