Patent · US Active

Joint determination of accommodation and vergence

US11445904B2 · kind B2 · utility

0Cited by

5References

22Claims

0Family size

Assignee

Carl Zeiss Vision International GmbH · DE

Inventors

Alexander Leube · Aalen, DE
Arne Ohlendorf · Tübingen, DE
Siegfried Wahl · Donzdorf, DE

Key dates

Filing date	Feb 1, 2022
Grant date	Sep 20, 2022
Priority date	—
Expiry date	Feb 1, 2042

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B3/0025
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

Methods and apparatuses for joint determination of accommodation and vergence of at least one eye of a user are disclosed. The joint determination includes determining an accommodation of the eye of the user and ascertaining values for checking myopia of the eye by presenting a sign at a first distance in front of the eye to stimulate the accommodation of the eye; capturing an eye movement; ascertaining a refraction of the eye with the accommodation of the eye at the first distance; and joint determination of accommodation and vergence of the eye by ascertaining a change in the refraction of the eye with the accommodation of the eye at the first distance in relation to the accommodation of the eye at a second distance; and ascertaining the vergence of the eye from the eye movement of the eye with the accommodation of the eye at the first distance.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.