US 12,226,156 B2
Measuring eye refraction
Gang Luo, Lexington, MA (US)
Assigned to The Schepens Eye Research Institute, Inc., Boston, MA (US)
Filed by The Schepens Eye Research Institute, Inc., Boston, MA (US)
Filed on Jan. 11, 2024, as Appl. No. 18/409,977.
Application 18/409,977 is a continuation of application No. 16/971,981, granted, now 11,903,644, previously published as PCT/US2019/019227, filed on Feb. 22, 2019.
Claims priority of provisional application 62/634,061, filed on Feb. 22, 2018.
Prior Publication US 2024/0215816 A1, Jul. 4, 2024
Int. Cl. A61B 3/032 (2006.01); A61B 3/00 (2006.01); A61B 3/11 (2006.01); A61B 3/113 (2006.01); G02B 27/00 (2006.01); G06F 18/22 (2023.01); G06T 7/73 (2017.01); G06T 17/00 (2006.01); G06V 40/16 (2022.01); G06V 40/19 (2022.01); G06V 40/60 (2022.01)
CPC A61B 3/032 (2013.01) [A61B 3/0025 (2013.01); A61B 3/0091 (2013.01); A61B 3/112 (2013.01); A61B 3/113 (2013.01); G02B 27/0093 (2013.01); G06F 18/22 (2023.01); G06T 7/74 (2017.01); G06T 17/00 (2013.01); G06V 40/171 (2022.01); G06V 40/19 (2022.01); G06V 40/67 (2022.01)] 7 Claims
OG exemplary drawing
 
1. A method of vision prescription measurement, the method comprising:
presenting, on a display of a mobile device, one or more misaligned Vernier targets or grating targets configured to represent perfect vision;
determining, using the mobile device, accurate sizes and shapes of the Vernier targets or grating targets based on the distance between the patient and the mobile device; and
determining, using the mobile device, when the patient can accurately identify the one or more misaligned Vernier targets or grating patterns in the grating targets,
wherein if the patient can correctly identify the one or more misaligned Vernier targets or grating patterns in the grating targets, communicating using the mobile device that the patient that no prescription for the patient is not required, and
wherein if the patient cannot correctly identify the one or more misaligned Vernier targets or grating patterns in the grating targets, communicating using the mobile device to move the mobile device until the patient can accurately identify the one or more misaligned Vernier targets or grating patterns in the grating targets, and calculating, using the mobile device, a prescription for the patient using a distance between the patient and the mobile device.