Apparatus and method for making ophthalmic measurements

Details Apparatus and method for making ophthalmic measurements Apparatus and method for making ophthalmic measurements

1978-02-24

1979-07-10

Aegerter, Richard E.

Geometrical instruments

Gauge

Spectacle

351 5, A61B 310

Patent

active

041603303

ABSTRACT:
A device for use in fitting lenses to spectacles frames wherewith ophthalmic measurements are applied directly to frames selected by patients. A frame without lenses is adjusted to fit the patient, the fitting device is applied to the frame and the whole placed upon the face. Measurements of distances from extreme lateral and inferior points on the frame rims to the patient's visual axis in the case of each eye are taken for use in edging the lenses to a size and shape which will locate their optical centers in coincidence with the patient's visual axes when the spectacles are glazed and put to use.

REFERENCES:
patent: 2536367 (1951-01-01), Holmes

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