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Scheiner-Principle Pocket Optometer for Self Evaluation and Bio-Feedback Accommodation Training.
Patent, Filed 28 Beb 90, patented 5 Mar 91,
DEPARTMENT OF THE NAVY WASHINGTON DC
Pagination or Media Count:
A method and optometer apparatus for measuring the accommodative state of an eye of a subject is disclosed. In a preferred embodiment, the optometer apparatus includes a pinhole aperture plate having a center and a plurality of apertures in the pinhole aperture plate for viewing by the subjects eye a positive lens disposed near the pinhole aperture plate and having an optical axis coincident with the center of the pinhole aperture plate and scaled means inclined away from the positive lens for indicating to the subject the accommodative state of the subjects eye in diopters.
APPROVED FOR PUBLIC RELEASE