Isolating and quantifying functional impairments of the gaze stabilization system
First Claim
1. A method for isolating and quantifying impairments of a subject'"'"'s gaze stabilization system, the method comprising:
- measuring the subject'"'"'s static visual acuity to arrive at an assessment;
measuring the subject'"'"'s visual acuity when the subject'"'"'s head is moving and a display object is fixed to arrive at a first dynamic measurement;
measuring the subject'"'"'s visual acuity when the subject'"'"'s head is fixed and the display object is moving to arrive at a second dynamic measurement;
using the assessment and the first and second dynamic measurements to determine an impairment of the subject'"'"'s gaze stabilization system.
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Accused Products
Abstract
A method for isolating and quantifying impairments of a subject'"'"'s gaze stabilization system is provided. A subject'"'"'s static visual acuity is measured to arrive at an assessment. The subject'"'"'s visual acuity is then measured when the subject'"'"'s head is moving and a display object is fixed to arrive at a first dynamic measurement. The subject'"'"'s visual acuity is also measured when the subject'"'"'s head is fixed and the display object is moving to arrive at a second dynamic measurement. The assessment and the first and second dynamic measurements are then used to determine an impairment of the subject'"'"'s gaze stabilization system.
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Citations
30 Claims
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1. A method for isolating and quantifying impairments of a subject'"'"'s gaze stabilization system, the method comprising:
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measuring the subject'"'"'s static visual acuity to arrive at an assessment; measuring the subject'"'"'s visual acuity when the subject'"'"'s head is moving and a display object is fixed to arrive at a first dynamic measurement; measuring the subject'"'"'s visual acuity when the subject'"'"'s head is fixed and the display object is moving to arrive at a second dynamic measurement; using the assessment and the first and second dynamic measurements to determine an impairment of the subject'"'"'s gaze stabilization system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 26, 27)
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25. A method for isolating and quantifying impairments of a subject'"'"'s gaze stabilization system, the method comprising:
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assessing the subject'"'"'s static visual acuity; measuring at least two aspects of the subject'"'"'s dynamic visual acuity; calculating a first quantity related to both the subject'"'"'s static visual acuity and a first aspect of the subject'"'"'s dynamic visual acuity; comparing the first quantity with a normative value similarly derived from a population of individuals free of gaze stabilization impairments; and and determining an impairment of the subject'"'"'s gaze stabilization system when the first quantity varies from the normative value by more than one standard deviation.
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28. A method for isolating and quantifying impairments of a subject'"'"'s gaze stabilization system, the method comprising:
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assessing the subject'"'"'s static visual acuity; measuring the subject'"'"'s visual acuity when the subject'"'"'s head is moving and a display object is fixed to determine a first relationship to the subject'"'"'s static visual acuity; measuring the subject'"'"'s visual acuity when the subject'"'"'s head is fixed and the display object is continuously moving to determine a second relationship to the subject'"'"'s static visual acuity; measuring the subject'"'"'s visual acuity when the subject'"'"'s head is fixed and the display object is discontinuously moving to determine a third relationship to subject'"'"'s static visual acuity; measuring the subject'"'"'s visual acuity when the subject'"'"'s head is fixed, the display object is continuously moving, and the patterned large field background is continuously moving to determine a fourth relationship to the subject'"'"'s static visual acuity; and determining the extent to which impairments of the subject'"'"'s gaze stabilization system reduce the subject'"'"'s ability to perceive objects based on the first, second, third, and fourth relationships.
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29. A method for isolating and quantifying impairments of a subject'"'"'s gaze stabilization system, the method comprising:
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measuring the subject'"'"'s static visual acuity to arrive at an assessment; measuring the subject'"'"'s visual acuity when the subject is standing on a continuously moving support surface, the subject'"'"'s head is moving a display object is fixed to arrive at a first dynamic measurement; measuring the subject'"'"'s visual acuity when the subjects is standing on the continuously moving support surface, the subject'"'"'s head is fixed and the display object is moving to arrive at a second dynamic measurement; using the assessment and the first and second dynamic measurements to determine an impairment of the subject'"'"'s gaze stabilization system.
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30. A method for isolating and quantifying impairments of a subject'"'"'s gaze stabilization system, the method comprising:
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measuring the subject'"'"'s static visual acuity to arrive at an assessment; measuring the subject'"'"'s visual acuity when the subject is standing on a support surface that is discontinuously moving, the subject'"'"'s head is moving a display object is fixed to arrive at a first dynamic measurement; measuring the subject'"'"'s visual acuity when the subjects is standing on the support surface that is discontinuously moving, the subject'"'"'s head is fixed and the display object is moving to arrive at a second dynamic measurement; using the assessment and the first and second dynamic measurements to determine an impairment of the subject'"'"'s gaze stabilization system.
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Specification