VR System for Cross-modal Rehabilitation of Hemianopia

The area of the subject's visual field measured by 30-2 Humphrey visual field (HVF) perimetry. Both left and right sides will be tested. The deficit side includes is the hemianopic side. The intact side is the non-hemianopic side. During the HVF test, light is projected into a white bowl with a standardized background light intensity to form a circular stimulus, around 30 cm away from the patient's eye. The overall field mapping technique used is a form of static perimetry, where a stimulus appears in various areas of the field of vision. The patient indicates when they can see the stimulus and the perimetrist then records the point where the stimulus was seen. These data points are used to determine the patient's visual field.

The area of the subject's visual field measured by 30-2 Humphrey visual field (HVF) perimetry. Both left and right sides will be tested. The deficit side includes is the hemianopic side. The intact side is the non-hemianopic side. During the HVF test, light is projected into a white bowl with a standardized background light intensity to form a circular stimulus, around 30 cm away from the patient's eye. The overall field mapping technique used is a form of static perimetry, where a stimulus appears in various areas of the field of vision. The patient indicates when they can see the stimulus and the perimetrist then records the point where the stimulus was seen. These data points are used to determine the patient's visual field.

Percent of correct trials in each location tested. Location at 15 degrees and 30 degrees on the horizontal meridian on both the left and right side were tested. Virtual Reality Visual Field test is a brief 5-minute test using the VR system to track rehabilitation progress. The test consists of 30 trials with visual stimulus presented either 15° or 30° in either the hemianopia field or the intact field at random time intervals.

Percent of correct trials in each location tested. Location at 15 degrees and 30 degrees on the horizontal meridian on both the left and right side were tested. Virtual Reality Visual Field test is a brief 5-minute test using the VR system to track rehabilitation progress. The test consists of 30 trials with visual stimulus presented either 15° or 30° in either the hemianopia field or the intact field at random time intervals.

Percent of correct trials in each location tested. Location at 15 degrees and 30 degrees on the horizontal meridian on both the left and right side were tested. Virtual Reality Visual Field test is a brief 5-minute test using the VR system to track rehabilitation progress. The test consists of 30 trials with visual stimulus presented either 15° or 30° in either the hemianopia field or the intact field at random time intervals.

Percent of correct trials in each location tested. Location at 15 degrees and 30 degrees on the horizontal meridian on both the left and right side were tested. Virtual Reality Visual Field test is a brief 5-minute test using the VR system to track rehabilitation progress. The test consists of 30 trials with visual stimulus presented either 15° or 30° in either the hemianopia field or the intact field at random time intervals.

Percent of correct trials in each location tested. Location at 15 degrees and 30 degrees on the horizontal meridian on both the left and right side were tested. Virtual Reality Visual Field test is a brief 5-minute test using the VR system to track rehabilitation progress. The test consists of 30 trials with visual stimulus presented either 15° or 30° in either the hemianopia field or the intact field at random time intervals.

Percent of correct trials in each location tested. Location at 15 degrees and 30 degrees on the horizontal meridian on both the left and right side were tested. Virtual Reality Visual Field test is a brief 5-minute test using the VR system to track rehabilitation progress. The test consists of 30 trials with visual stimulus presented either 15° or 30° in either the hemianopia field or the intact field at random time intervals.

Percent of correct trials in each location tested. Location at 15 degrees and 30 degrees on the horizontal meridian on both the left and right side were tested. Virtual Reality Visual Field test is a brief 5-minute test using the VR system to track rehabilitation progress. The test consists of 30 trials with visual stimulus presented either 15° or 30° in either the hemianopia field or the intact field at random time intervals.

Percent of correct trials in each location tested. Location at 15 degrees and 30 degrees on the horizontal meridian on both the left and right side were tested. Virtual Reality Visual Field test is a brief 5-minute test using the VR system to track rehabilitation progress. The test consists of 30 trials with visual stimulus presented either 15° or 30° in either the hemianopia field or the intact field at random time intervals.

Percent of correct trials in each location tested. Location at 15 degrees and 30 degrees on the horizontal meridian on both the left and right side were tested. Virtual Reality Visual Field test is a brief 5-minute test using the VR system to track rehabilitation progress. The test consists of 30 trials with visual stimulus presented either 15° or 30° in either the hemianopia field or the intact field at random time intervals.

Percent of correct trials in each location tested. Location at 15 degrees and 30 degrees on the horizontal meridian on both the left and right side were tested. Virtual Reality Visual Field test is a brief 5-minute test using the VR system to track rehabilitation progress. The test consists of 30 trials with visual stimulus presented either 15° or 30° in either the hemianopia field or the intact field at random time intervals.

Percent of correct trials in each location tested. Location at 15 degrees and 30 degrees on the horizontal meridian on both the left and right side were tested. Virtual Reality Visual Field test is a brief 5-minute test using the VR system to track rehabilitation progress. The test consists of 30 trials with visual stimulus presented either 15° or 30° in either the hemianopia field or the intact field at random time intervals.

Percent of correct trials in each location tested. Location at 15 degrees and 30 degrees on the horizontal meridian on both the left and right side were tested. Virtual Reality Visual Field test is a brief 5-minute test using the VR system to track rehabilitation progress. The test consists of 30 trials with visual stimulus presented either 15° or 30° in either the hemianopia field or the intact field at random time intervals.

Percent of correct trials in each location tested. Location at 15 degrees and 30 degrees on the horizontal meridian on both the left and right side were tested. Virtual Reality Visual Field test is a brief 5-minute test using the VR system to track rehabilitation progress. The test consists of 30 trials with visual stimulus presented either 15° or 30° in either the hemianopia field or the intact field at random time intervals.

Percent of correct trials in each location tested. Location at 15 degrees and 30 degrees on the horizontal meridian on both the left and right side were tested. Virtual Reality Visual Field test is a brief 5-minute test using the VR system to track rehabilitation progress. The test consists of 30 trials with visual stimulus presented either 15° or 30° in either the hemianopia field or the intact field at random time intervals.

Percent of correct trials in each location tested. Location at 15 degrees and 30 degrees on the horizontal meridian on both the left and right side were tested. Virtual Reality Visual Field test is a brief 5-minute test using the VR system to track rehabilitation progress. The test consists of 30 trials with visual stimulus presented either 15° or 30° in either the hemianopia field or the intact field at random time intervals.

Percent of correct trials in each location tested. Location at 15 degrees and 30 degrees on the horizontal meridian on both the left and right side were tested. Virtual Reality Visual Field test is a brief 5-minute test using the VR system to track rehabilitation progress. The test consists of 30 trials with visual stimulus presented either 15° or 30° in either the hemianopia field or the intact field at random time intervals.

Percent of correct trials in each location tested. Location at 15 degrees and 30 degrees on the horizontal meridian on both the left and right side were tested. Virtual Reality Visual Field test is a brief 5-minute test using the VR system to track rehabilitation progress. The test consists of 30 trials with visual stimulus presented either 15° or 30° in either the hemianopia field or the intact field at random time intervals.

Percent of correct trials in each location tested. Location at 15 degrees and 30 degrees on the horizontal meridian on both the left and right side were tested. Virtual Reality Visual Field test is a brief 5-minute test using the VR system to track rehabilitation progress. The test consists of 30 trials with visual stimulus presented either 15° or 30° in either the hemianopia field or the intact field at random time intervals.

Percent of correct trials in each location tested. Location at 15 degrees and 30 degrees on the horizontal meridian on both the left and right side were tested. Virtual Reality Visual Field test is a brief 5-minute test using the VR system to track rehabilitation progress. The test consists of 30 trials with visual stimulus presented either 15° or 30° in either the hemianopia field or the intact field at random time intervals.

Percent of correct trials in each location tested. Location at 15 degrees and 30 degrees on the horizontal meridian on both the left and right side were tested. Virtual Reality Visual Field test is a brief 5-minute test using the VR system to track rehabilitation progress. The test consists of 30 trials with visual stimulus presented either 15° or 30° in either the hemianopia field or the intact field at random time intervals.

Percent of correct trials in each location tested. Location at 15 degrees and 30 degrees on the horizontal meridian on both the left and right side were tested. Virtual Reality Visual Field test is a brief 5-minute test using the VR system to track rehabilitation progress. The test consists of 30 trials with visual stimulus presented either 15° or 30° in either the hemianopia field or the intact field at random time intervals.

Percent of correct trials in each location tested. Location at 15 degrees and 30 degrees on the horizontal meridian on both the left and right side were tested. Virtual Reality Visual Field test is a brief 5-minute test using the VR system to track rehabilitation progress. The test consists of 30 trials with visual stimulus presented either 15° or 30° in either the hemianopia field or the intact field at random time intervals.

Percent of correct trials in each location tested. Location at 15 degrees and 30 degrees on the horizontal meridian on both the left and right side were tested. Virtual Reality Visual Field test is a brief 5-minute test using the VR system to track rehabilitation progress. The test consists of 30 trials with visual stimulus presented either 15° or 30° in either the hemianopia field or the intact field at random time intervals.

Percent of correct trials in each location tested. Location at 15 degrees and 30 degrees on the horizontal meridian on both the left and right side were tested. Virtual Reality Visual Field test is a brief 5-minute test using the VR system to track rehabilitation progress. The test consists of 30 trials with visual stimulus presented either 15° or 30° in either the hemianopia field or the intact field at random time intervals.

Percent of correct trials in each location tested. Location at 15 degrees and 30 degrees on the horizontal meridian on both the left and right side were tested. Virtual Reality Visual Field test is a brief 5-minute test using the VR system to track rehabilitation progress. The test consists of 30 trials with visual stimulus presented either 15° or 30° in either the hemianopia field or the intact field at random time intervals.

Percent of correct trials in each location tested. Location at 15 degrees and 30 degrees on the horizontal meridian on both the left and right side were tested. Virtual Reality Visual Field test is a brief 5-minute test using the VR system to track rehabilitation progress. The test consists of 30 trials with visual stimulus presented either 15° or 30° in either the hemianopia field or the intact field at random time intervals.

Percent of correct trials in each location tested. Location at 15 degrees and 30 degrees on the horizontal meridian on both the left and right side were tested. Virtual Reality Visual Field test is a brief 5-minute test using the VR system to track rehabilitation progress. The test consists of 30 trials with visual stimulus presented either 15° or 30° in either the hemianopia field or the intact field at random time intervals.

Percent of correct trials in each location tested. Location at 15 degrees and 30 degrees on the horizontal meridian on both the left and right side were tested. Virtual Reality Visual Field test is a brief 5-minute test using the VR system to track rehabilitation progress. The test consists of 30 trials with visual stimulus presented either 15° or 30° in either the hemianopia field or the intact field at random time intervals.

Percent of correct trials in each location tested. Location at 15 degrees and 30 degrees on the horizontal meridian on both the left and right side were tested. Virtual Reality Visual Field test is a brief 5-minute test using the VR system to track rehabilitation progress. The test consists of 30 trials with visual stimulus presented either 15° or 30° in either the hemianopia field or the intact field at random time intervals.

The number of points subjects can detect in each location of the visual field along the horizontal meridian. Percent of correct trials in each location tested in the deficit and intact side. Locations at 15°, 30°, 45°, 60°, and 75° on the horizontal meridian on the left and right side were tested.

The number of points subjects can detect in each location of the visual field along the horizontal meridian. Percent of correct trials in each location tested in the deficit and intact side. Locations at 15°, 30°, 45°, 60°, and 75° on the horizontal meridian on the left and right side were tested.

The number of points subjects can detect in each location of the visual field along the horizontal meridian. Percent of correct trials in each location tested in the deficit and intact side. Locations at 15°, 30°, 45°, 60°, and 75° on the horizontal meridian on the left and right side were tested.

The number of points subjects can detect in each location of the visual field along the horizontal meridian. Percent of correct trials in each location tested in the deficit and intact side. Locations at 15°, 30°, 45°, 60°, and 75° on the horizontal meridian on the left and right side were tested.

The NEI-VFQ-25 is a 25-item questionnaire regarding the quality of vision, social functioning, visual dependency, near vision, and color vision. This score is calculated from the average of all subscale scores in the NEI VFQ-25 excluding the general health score. The score ranges from 0 to 100. A higher score denotes better vision-related quality of life.

The NEI-VFQ-25 is a 25-item questionnaire regarding the quality of vision, social functioning, visual dependency, near vision, and color vision. This score is calculated from the average of all subscale scores in the NEI VFQ-25 excluding the general health score. The score ranges from 0 to 100. A higher score denotes better vision-related quality of life.

The NEI-VFQ-25 is a 25-item questionnaire regarding the quality of vision, social functioning, visual dependency, near vision, and color vision. The General Health Score is a subscale that measures the participant's self-report of their overall health. The score ranges from 0 to 100. A higher score denotes better perception of overall health.

The NEI-VFQ-25 is a 25-item questionnaire regarding the quality of vision, social functioning, visual dependency, near vision, and color vision. The General Health Score is a subscale that measures the participant's self-report of their overall health. The score ranges from 0 to 100. A higher score denotes better perception of overall health.

The NEI-VFQ-25 is a 25-item questionnaire regarding the quality of vision, social functioning, visual dependency, near vision, and color vision. The General Vision Score measures the participant's reported quality of vision. The score ranges from 0 to 100. A higher score denotes a better perception of vision

The NEI-VFQ-25 is a 25-item questionnaire regarding the quality of vision, social functioning, visual dependency, near vision, and color vision. The General Vision Score measures the participant's reported quality of vision. The score ranges from 0 to 100. A higher score denotes a better perception of vision

The NEI-VFQ-25 is a 25-item questionnaire regarding the quality of vision, social functioning, visual dependency, near vision, and color vision. The Ocular Pain Score Subscale measures reported pain or discomfort in and around the eyes. The score ranges from 0 to 100. A higher score denotes better vision-specific quality of life related to ocular pain.

The NEI-VFQ-25 is a 25-item questionnaire regarding the quality of vision, social functioning, visual dependency, near vision, and color vision. The Ocular Pain Score Subscale measures reported pain or discomfort in and around the eyes. The score ranges from 0 to 100. A higher score denotes better vision-specific quality of life related to ocular pain.

The NEI-VFQ-25 is a 25-item questionnaire regarding the quality of vision, social functioning, visual dependency, near vision, and color vision. The Near Activities Score Subscale measures difficulty with performing near activities. The score ranges from 0 to 100. A higher score denotes better vision-specific quality of life related to near activities.

The NEI-VFQ-25 is a 25-item questionnaire regarding the quality of vision, social functioning, visual dependency, near vision, and color vision. The Near Activities Score Subscale measures difficulty with performing near activities. The score ranges from 0 to 100. A higher score denotes better vision-specific quality of life related to near activities.

The NEI-VFQ-25 is a 25-item questionnaire regarding the quality of vision, social functioning, visual dependency, near vision, and color vision. The Distance Activities Score Subscale measures difficulty with performing distance activities. The score ranges from 0 to 100. A higher score denotes better vision-specific quality of life related to distance activities.

The NEI-VFQ-25 is a 25-item questionnaire regarding the quality of vision, social functioning, visual dependency, near vision, and color vision. The Distance Activities Score Subscale measures difficulty with performing distance activities. The score ranges from 0 to 100. A higher score denotes better vision-specific quality of life related to distance activities.

The NEI-VFQ-25 is a 25-item questionnaire regarding the quality of vision, social functioning, visual dependency, near vision, and color vision. The Social Functioning Score Subscale measures how vision difficulties affect social functioning. The score ranges from 0 to 100. A higher score denotes better vision-specific quality of life related to social functioning.

The NEI-VFQ-25 is a 25-item questionnaire regarding the quality of vision, social functioning, visual dependency, near vision, and color vision. The Social Functioning Score Subscale measures how vision difficulties affect social functioning. The score ranges from 0 to 100. A higher score denotes better vision-specific quality of life related to social functioning.

The NEI-VFQ-25 is a 25-item questionnaire regarding the quality of vision, social functioning, visual dependency, near vision, and color vision. The Mental Health Score Subscale measures how much patients feel vision affects their mental health. The score ranges from 0 to 100. A higher score denotes better vision-specific quality of life relating to mental health.

The NEI-VFQ-25 is a 25-item questionnaire regarding the quality of vision, social functioning, visual dependency, near vision, and color vision. The Mental Health Score Subscale measures how much patients feel vision affects their mental health. The score ranges from 0 to 100. A higher score denotes better vision-specific quality of life relating to mental health.

The NEI-VFQ-25 is a 25-item questionnaire regarding the quality of vision, social functioning, visual dependency, near vision, and color vision. The Role Difficulties Score Subscale measures how limited by their vision patients feel they are. The score ranges from 0 to 100. A higher score denotes better vision-specific quality of life relating to role difficulties.

The NEI-VFQ-25 is a 25-item questionnaire regarding the quality of vision, social functioning, visual dependency, near vision, and color vision. The Role Difficulties Score Subscale measures how limited by their vision patients feel they are. The score ranges from 0 to 100. A higher score denotes better vision-specific quality of life relating to role difficulties.

The NEI-VFQ-25 is a 25-item questionnaire regarding the quality of vision, social functioning, visual dependency, near vision, and color vision. The Dependency Score Subscale measures how much patients are dependent on other people due to their vision. The score ranges from 0 to 100. A higher score denotes better vision-specific quality of life related to dependency.

The NEI-VFQ-25 is a 25-item questionnaire regarding the quality of vision, social functioning, visual dependency, near vision, and color vision. The Dependency Score Subscale measures how much patients are dependent on other people due to their vision. The score ranges from 0 to 100. A higher score denotes better vision-specific quality of life related to dependency.

The NEI-VFQ-25 is a 25-item questionnaire regarding the quality of vision, social functioning, visual dependency, near vision, and color vision. The Driving Score Subscale measures patients' reported difficulty with driving. The score ranges from 0 to 100. Patients who do not drive are not given a driving score. A higher score denotes better vision-specific quality of life related to driving.

The NEI-VFQ-25 is a 25-item questionnaire regarding the quality of vision, social functioning, visual dependency, near vision, and color vision. The Driving Score Subscale measures patients' reported difficulty with driving. The score ranges from 0 to 100. Patients who do not drive are not given a driving score. A higher score denotes better vision-specific quality of life related to driving.

The NEI-VFQ-25 is a 25-item questionnaire regarding the quality of vision, social functioning, visual dependency, near vision, and color vision. The Color Vision Score Subscale measures how much difficulty patients have with using color vision to complete daily activities such as picking out clothes. The score ranges from 0 to 100. A higher score denotes better vision-specific quality of life related to color vision.

The NEI-VFQ-25 is a 25-item questionnaire regarding the quality of vision, social functioning, visual dependency, near vision, and color vision. The Color Vision Score Subscale measures how much difficulty patients have with using color vision to complete daily activities such as picking out clothes. The score ranges from 0 to 100. A higher score denotes better vision-specific quality of life related to color vision.

The NEI-VFQ-25 is a 25-item questionnaire regarding the quality of vision, social functioning, visual dependency, near vision, and color vision. The Peripheral Vision Score Subscale measures how much difficulty patients have with their peripheral vision to complete daily activities. The score ranges from 0 to 100. A higher score denotes better vision-specific quality of life related to peripheral vision.

The NEI-VFQ-25 is a 25-item questionnaire regarding the quality of vision, social functioning, visual dependency, near vision, and color vision. The Peripheral Vision Score Subscale measures how much difficulty patients have with their peripheral vision to complete daily activities. The score ranges from 0 to 100. A higher score denotes better vision-specific quality of life related to peripheral vision.

The VA LV VFQ-48 is a self-report instrument designed to measure difficulty visually impaired persons have performing daily activities. The acceptable range for the average item score is <= 2.34 (most difficult) and >=-2.22 (least difficult). Scores out of this range indicate something other than visual impairment is governing the patient's responses. The Item Score is the average functional reserve of all the items in the questionnaire excluding items which were rated Unscored (Difficult / don't do for Non-Visual Reasons). Functional reserve is the difference between a patient's visual ability and the visual ability needed to perform an activity.

The VA LV VFQ-48 is a self-report instrument designed to measure difficulty visually impaired persons have performing daily activities. The acceptable range for the average item score is <= 2.34 (most difficult) and >=-2.22 (least difficult). Scores out of this range indicate something other than visual impairment is governing the patient's responses. The Item Score is the average functional reserve of all the items in the questionnaire excluding items which were rated Unscored (Difficult / don't do for Non-Visual Reasons). Functional reserve is the difference between a patient's visual ability and the visual ability needed to perform an activity.

The VA LV VFQ-48 is a self-report instrument designed to measure difficulty visually impaired persons have performing daily activities. The acceptable range for the average item score is <= 2.34 (most difficult) and >=-2.22 (least difficult). Scores out of this range indicate something other than visual impairment is governing the patient's responses. The Item Score is the average functional reserve of all the items in the questionnaire excluding items which were rated Unscored (Difficult / don't do for Non-Visual Reasons). Functional reserve is the difference between a patient's visual ability and the visual ability needed to perform an activity.

The VA LV VFQ-48 is a self-report instrument designed to measure difficulty visually impaired persons have performing daily activities. The acceptable range for the average item score is <= 2.34 and >=-2.22. Scores out of this range indicate something other than visual impairment is governing the patient's responses. The reading domain score is calculated by calculating the average score of reading items. The composite score approximates a person's visual ability. The score is calculated using Massof's algorithm using the inverse hyperbolic tangent equation. For the composite score, a lower score is better.

he VA LV VFQ-48 is a self-report instrument designed to measure difficulty visually impaired persons have performing daily activities. The acceptable range for the average item score is <= 2.34 and >=-2.22. Scores out of this range indicate something other than visual impairment is governing the patient's responses. The reading domain score is calculated by calculating the average score of reading items. The composite score approximates a person's visual ability. The score is calculated using Massof's algorithm using the inverse hyperbolic tangent equation. For the composite score, a lower score is better.

he VA LV VFQ-48 is a self-report instrument designed to measure difficulty visually impaired persons have performing daily activities. The acceptable range for the average item score is <= 2.34 and >=-2.22. Scores out of this range indicate something other than visual impairment is governing the patient's responses. The reading domain score is calculated by calculating the average score of reading items. The composite score approximates a person's visual ability. The score is calculated using Massof's algorithm using the inverse hyperbolic tangent equation. For the composite score, a lower score is better.

The VA LV VFQ-48 is a self-report instrument designed to measure difficulty visually impaired persons have performing daily activities. The reading domain score is calculated by calculating the average score of reading items. Scores range from 0 to 3.5 logits, with higher scores denoting better ability to perform activities. The Reading Domain Score is the average functional reserve of the items measuring the reading functional domain, excluding items which were rated Unscored (Difficult / don't do for Non-Visual Reasons).

The VA LV VFQ-48 is a self-report instrument designed to measure difficulty visually impaired persons have performing daily activities. The reading domain score is calculated by calculating the average score of reading items. Scores range from 0 to 3.5 logits, with higher scores denoting better ability to perform activities. The Reading Domain Score is the average functional reserve of the items measuring the reading functional domain, excluding items which were rated Unscored (Difficult / don't do for Non-Visual Reasons).

The VA LV VFQ-48 is a self-report instrument designed to measure difficulty visually impaired persons have performing daily activities. The reading domain score is calculated by calculating the average score of reading items. Scores range from 0 to 3.5 logits, with higher scores denoting better ability to perform activities. The Reading Domain Score is the average functional reserve of the items measuring the reading functional domain, excluding items which were rated Unscored (Difficult / don't do for Non-Visual Reasons).