Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Patent
1994-11-10
1996-09-03
Sikes, William L.
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Objective type
351237, 351239, 351246, A61B 310
Patent
active
055528422
ABSTRACT:
A segmented objective vision test is administered to a patient for determining a quantitative measurement of vision capability in the tested segments. Human vision can be tested in separate segments of the total vision spectrum including contrast sensitivity, or color sensitivity testing. Thereafter, an emmetropic real world image is filtered into corresponding emmetropic image segments. These corresponding emmetropic image segments are degraded into degraded image segments in correspondence with the separate test results for each corresponding separate segment of the total vision spectrum. The degraded image segments are then added to produce an objectively altered real world image. This objectively altered real world image can then be compared to the real world image of the emmetrope and a record preserved of the patient's actual vision condition as evidenced by the objective vision test and the subsequent image processing.
REFERENCES:
patent: 4365873 (1982-12-01), Ginsburg
Fries Craig
Ginsburg Arthur P.
Tessler Lawrence P.
Tifft Jonathan
Dang Hung Xuan
Sikes William L.
Vision Sciences Research Corp.
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