US 12,446,774 B2
Apparatus, systems, and methods for objectively assessing accommodation in an eye
Victor Manuel Hernandez, Fort Worth, TX (US); Armin Soltan Zadi, Fort Worth, TX (US); Robert Demitri Angelopoulos, San Jose, CA (US); Terah Whiting Smiley, Davis, CA (US); Madison McGOUGH, Fort Worth, TX (US); and Vidhyapriya Sreenivasan, Fort Worth, TX (US)
Assigned to Alcon Inc., Fribourg (CH)
Filed by Alcon Inc., Fribourg (CH)
Filed on Mar. 21, 2022, as Appl. No. 17/655,768.
Claims priority of provisional application 63/261,801, filed on Sep. 29, 2021.
Claims priority of provisional application 63/171,320, filed on Apr. 6, 2021.
Prior Publication US 2022/0313080 A1, Oct. 6, 2022
Int. Cl. A61B 3/103 (2006.01); A61B 3/00 (2006.01); A61B 3/032 (2006.01); A61B 3/04 (2006.01); A61B 3/10 (2006.01); A61B 3/15 (2006.01)
CPC A61B 3/103 (2013.01) [A61B 3/0075 (2013.01); A61B 3/032 (2013.01); A61B 3/04 (2013.01); A61B 3/1015 (2013.01); A61B 3/152 (2013.01); A61B 2560/045 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for objectively assessing accommodation in an eye of a subject, the system comprising:
a near display and a first beam splitter positioned at an oblique angle with respect to the near display;
a far display located further from the eye than the near display and the first beam splitter; and
a controller in communication with the near display and the far display, the controller comprising one or more processors and a tangible non-transitory machine-readable medium comprising instructions stored thereon,
wherein execution of the instructions by the one or more processors causes the controller to:
direct appearance of a stimulus target on the far display for a first duration and on the near display for a second duration, wherein the near display is configured to project the stimulus target onto the first beam splitter, wherein the stimulus target displayed on the far display is axially aligned with the stimulus target projected onto the first beam splitter,
obtain measurements concerning refractive states of the eye during the first duration and the second duration from a refractor device in communication with the controller, and
determine an accommodative response of the eye based in part on the refractive states.