Patent ID: 11925416
Assignee: EASEE HEALTH B.V.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC A  G  H | IPC A  G  H

Claim 5:
6. A system for performing an eye examination test for examining at least a visual acuity of eyes of a user, said system comprising a computing device as well as an input tool, said computing device comprising:
a camera unit arranged for capturing at least one image of a human face of a user facing a screen comprised by said computing device;
a detect unit arranged for detecting, in said at least one captured image, both pupils of said human face;
process equipment arranged for determining a distance of said user to said screen based on:
a predetermined distance between pupils of any user;
a distance between said detected pupils in said captured at least one image, and
a focal length of said camera unit;

wherein said computing device further comprises:
a focal length determination unit arranged for determining said focal length of said camera unit by calculating said focal length based on said predetermined distance between pupils of any user, a predetermined initial distance of a user facing said screen, and said distance between said detected pupils in said at least one captured image;
wherein said predetermined initial distance of a user facing said screen is between 30 cm and 70 cm;
wherein said computing device and said input tool comprise eye examination test means arranged for performing said eye examination test using said determined distance between said user and said screen, the user using the input tool for inputting answers to questionnaires displayed on the screen.