The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 2025
Filed:
May. 11, 2020
University of Rochester, Rochester, NY (US);
Geunyoung Yoon, Houston, TX (US);
University of Rochester, Rochester, NY (US);
Abstract
A method to find a visual axis of an eye includes illuminating a light source pinhole by a light including at least two different wavelengths; projecting an image of the light source pinhole through a translatable pinhole and through a pupil of the eye onto a retina of the eye; generating a projected image of the translatable pinhole on an anterior surface of the eye or a contact lens; adjusting a position of the translatable pinhole in a plane about parallel to a plane of a cornea of the eye until two different dots viewed on the retina merge into one dot; and indicating by the projected image of the translatable pinhole a location of where the visual axis of the eye intersects the cornea or the contact lens. An apparatus to measure a visual axis of an eye is also described.