Method and apparatus for performing a visual field test
US11723530B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2017 |
| Grant date | Aug 15, 2023 |
| Priority date | — |
| Expiry date | Dec 10, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/063
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus are provided for measuring a sensitivity level across a visual field of a subject defined by a set of locations. The method comprises: presenting a sequence of visual stimuli on a display, wherein each stimulus in the sequence has a respective intensity level and is positioned on the display to correspond to a respective location from the set of locations; obtaining from the subject, for each stimulus, a respective binary response indicating whether or not the stimulus was seen by the subject; and after receiving the response from the subject for a given stimulus in the sequence, using a statistical model to estimate, for each location in the set of locations, the sensitivity level at that location; wherein the statistical model incorporates information about correlations in responses between different locations from the set of locations and takes as input, the respective binary response, intensity level and location for multiple stimuli presented in said sequence up to and including the given stimulus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.