Subjective refraction exam system
US12295659B2 · kind B2 · utility
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2References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 28, 2021 |
| Grant date | May 13, 2025 |
| Priority date | — |
| Expiry date | Oct 7, 2043 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/103
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods and systems herein can include displaying at least one image to a test subject, wherein the at least one image has a visual appearance to the test subject based on physical characteristics of the eyes of the test subject, obtaining input from the test subject regarding the visual appearance of the at least one image, and calculating an optical parameter of the test subject based on the input from the test subject.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.