US 12,349,970 B2
Guiding fixation method applied to eye examination device
Chun Nan Lin, Bade (TW); and Kun Cheng Hsieh, New Taipei (TW)
Assigned to Crystalvue Medical Corporation, Taoyuan (TW)
Filed by Crystalvue Medical Corporation, Taoyuan (TW)
Filed on Sep. 1, 2022, as Appl. No. 17/901,426.
Claims priority of application No. 110133091 (TW), filed on Sep. 6, 2021.
Prior Publication US 2023/0074556 A1, Mar. 9, 2023
Int. Cl. A61B 3/00 (2006.01)
CPC A61B 3/0091 (2013.01) [A61B 3/0008 (2013.01); A61B 2562/0257 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A guiding fixation method applied to an eye examination device, the eye examination device at least comprising a first light source and a second light source, the guiding fixation method comprising steps of:
(a) disposing a third light source between the first light source and the second light source;
(b) when a distance between the eye examination device and an eye changes, the third light source emitting light to guide the eye to gaze at the third light source; and
(c) when the distance between the eye examination device and the eye stops changing, switching to the first light source and/or the second light source to emit light to guide the eye to gaze at the first light source and/or the second light source.