Method and apparatus for controlling accommodation and pupil size during an eye examination
US10702147B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2018 |
| Grant date | Jul 7, 2020 |
| Priority date | — |
| Expiry date | Feb 5, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/0083
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system for conducting an examination of the eyes of a subject includes an examination instrument which emits light at infrared wavelengths, and a shield. The shield provides shielding of the subject's eyes from visible wavelengths. At least a portion of the shield is transparent to the infrared wavelengths emitted by the examination instrument. A related method of conducting an eye examination on a subject includes the step of providing a shield which is transparent to infrared wavelengths but nontransparent to visible wavelengths. The method also includes the step of carrying out the examination with an instrument which is located on the examiner facing side of the shield and which emits the infrared wavelengths to which the shield is transparent. One variant of the method determines parameters relating to the subject's eyes and/or vision using only information considered to be valid, validity being based on the subject's pupil diameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.