Vision screening apparatus with a visual acuity protocol compliance feature and an associated method of vision screening
US11471042B2 · kind B2 · utility
1Cited by
9References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2019 |
| Grant date | Oct 18, 2022 |
| Priority date | — |
| Expiry date | Dec 6, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/197
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A vision screening apparatus includes first and second display units, a processor, and instructions which are executable by the processor. The instructions, when executed by the processor, cause the apparatus to 1) carry out a photorefraction test of a subject, 2) estimate the subject's visual acuity based on the photorefraction test, 3) present the subject with a visual acuity check optotype for an interval of time, and 4) monitor for noncompliance with a visual acuity check protocol during at least part of the time interval.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.