Macular pigment measurement device with data quality indexing feature
First Claim
1. A measurement system for measuring macular pigment from an eye of a subject, comprising:
- a light source having a first light and a second light that modulates at variable frequencies;
an input device for receiving an input indicating the frequency at which the user perceives the modulation of the first light and a second light;
a display device;
at least one processor; and
one or more memory devices storing instructions that, when executed by at least one processor, cause the system to;
display, on the display device, test data corresponding to the user'"'"'s inputs from the input device,determine whether the test data are valid or invalid through a curve-fitting algorithm,automatically indicate that the test data are valid or invalid.
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Accused Products
Abstract
A system measures macular pigment of a macula of a human eye of a subject. The system comprises a light source having a first light and a second light that modulate at variable frequencies, an input device for receiving an input indicating the frequency at which the user perceives the modulation of the first light and a second light, a display device, at least one processor, and one or more memory devices. The one or more memory devices storing instructions that, when executed by at least one processor, cause the system to (i) display, on the display device, test data corresponding to the user'"'"'s inputs from the input device, (ii) determine whether the test data are valid or invalid through a curve-fitting algorithm, (iii) automatically indicate that the test data are valid or invalid.
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Citations
18 Claims
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1. A measurement system for measuring macular pigment from an eye of a subject, comprising:
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a light source having a first light and a second light that modulates at variable frequencies; an input device for receiving an input indicating the frequency at which the user perceives the modulation of the first light and a second light; a display device; at least one processor; and
one or more memory devices storing instructions that, when executed by at least one processor, cause the system to;display, on the display device, test data corresponding to the user'"'"'s inputs from the input device, determine whether the test data are valid or invalid through a curve-fitting algorithm, automatically indicate that the test data are valid or invalid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A measurement system for measuring macular pigment from an eye of a subject, comprising:
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a light source arranged to be viewed by the subject, the light source comprising a first light and a second light arranged to undergo a modulation in opposing phases, the modulation decreasing from an initial modulation frequency at which an initial flicker of the first light and second light is not perceivable by the subject, the light source capable of providing a plurality of different ratios of the amount of the first light relative to the second light; an input device for receiving inputs from the subject to indicate when he or she perceives a flicker in the light source; and a display device for displaying (i) test data points corresponding to the user'"'"'s inputs at the plurality of different ratios of the amount of the first light relative to the second light and (ii) an automatic indication of whether the test data is acceptable or unacceptable. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification