Method for controlling fixation of a patient's eye during perime

Details Method for controlling fixation of a patient's eye during perime Method for controlling fixation of a patient's eye during perime

1985-09-18

1987-08-11

Bovernick, Rodney B.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Subjective type

351225, 351224, A61B 302

Patent

active

046857842

ABSTRACT:
A method for controlling the fixation of the eye of a patient during measuring of the sensitivity of the retina of the eye using a perimeter tester having a plurality of spaced testing light points of adjustable brightness, including the steps of adjusting the testing light point which lies in the center to the threshold value of the center of the eye of the patient, and thereafter repeatedly illuminating this testing light point with the threshold value or a super-threshold value near the threshold (1-4 dB superthreshold) to facilitate control of the fixation during the entire examination.

REFERENCES:
patent: 3718386 (1973-02-01), Lynn et al.
patent: 4255022 (1981-03-01), Kuether et al.

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