Visual acuity unit for treatment of amblypia
First Claim
1. In an ocular stimulator unit to improve a user'"'"'s acuity having a solitary visual target presented without interference from other visual stimulus, means for randomly selecting and generating at least one of a number of various figures to be displayed on the target, a keyboard through which the user can respond to various figures seen on the visual target, means for comparing the displayed figure with responses from the keyboard, means to inform the user of the correctness or incorrectness of the response, and means to adjust the apparent size of the displayed figure to maintain the figure displayed at a level of minimal discernible size, the improvement which compriseswherein the means to adjust the apparent size of the displayed figure comprises multiple lighted visual targets, each target available to serve as the solitary visual target presented individually during treatment and without interference from the other targetswherein said multiple visual targets are placed in a darkened chamber;
- means to maintain each of the visual targets at a different acuity demand level; and
means for the user to select electronically which of the multiple targets to view.
1 Assignment
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Accused Products
Abstract
The present invention provides improved apparatus for treatment of amblyopia and similar eye conditions through use of a solitary visual target maintained at a level of minimal discernible size. The improved apparatus provides instantaneous electronic switching between targets of different acuity demand levels, compact optics requiring limited case size, and automatic scoring of correct responses.
38 Citations
20 Claims
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1. In an ocular stimulator unit to improve a user'"'"'s acuity having a solitary visual target presented without interference from other visual stimulus, means for randomly selecting and generating at least one of a number of various figures to be displayed on the target, a keyboard through which the user can respond to various figures seen on the visual target, means for comparing the displayed figure with responses from the keyboard, means to inform the user of the correctness or incorrectness of the response, and means to adjust the apparent size of the displayed figure to maintain the figure displayed at a level of minimal discernible size, the improvement which comprises
wherein the means to adjust the apparent size of the displayed figure comprises multiple lighted visual targets, each target available to serve as the solitary visual target presented individually during treatment and without interference from the other targets wherein said multiple visual targets are placed in a darkened chamber; -
means to maintain each of the visual targets at a different acuity demand level; and means for the user to select electronically which of the multiple targets to view. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A user controlled acuity therapy unit for treatment of amblyopia and similar conditions, which unit comprises:
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a darkened chamber; multiple lighted visual targets placed in the darkened chamber, each target to be viewed alone without interference of other visual stimulus; means for randomly selecting and generating at least one of a number of various figures to be displayed on a target; a keyboard through which the user can respond to various figures seen on a visual target; means for comparing the displayed figure with responses from the keyboard; means to inform the user of the correctness or incorrectness of a response; means to maintain each of the targets at a different acuity level; and means for the user to select electronically which of the multiple targets to view in order to maintain the figure displayed thereon at a level of minimal discernible size. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification