US 12,108,986 B2
Method for automatically assessing the near vision accommodative state of a non-presbyopic individual and associated device
Laure Pichereau, Marcoussis (FR); and Kelly Woog, Chevry-Cossigny (FR)
Assigned to SIVIEW, Marcoussis (FR)
Appl. No. 17/619,494
Filed by SIVIEW, Marcoussis (FR)
PCT Filed Jun. 15, 2020, PCT No. PCT/EP2020/066470
§ 371(c)(1), (2) Date Dec. 15, 2021,
PCT Pub. No. WO2020/254239, PCT Pub. Date Dec. 24, 2020.
Claims priority of application No. 1906593 (FR), filed on Jun. 19, 2019.
Prior Publication US 2022/0409042 A1, Dec. 29, 2022
Int. Cl. A61B 3/09 (2006.01); A61B 3/032 (2006.01); A61B 3/04 (2006.01)
CPC A61B 3/09 (2013.01) [A61B 3/032 (2013.01); A61B 3/04 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method for automatically assessing the near vision accommodative state of a non-presbyopic individual, the method being performed after an assessment of the individual's far vision has led to the preparation of a far vision assessment report, the method comprising the following steps performed in order:
placing at least one optotype at a fixed distance from the individual's eyes;
if the individual fails to read the optotype, interrupting the method and generating a near vision assessment report including a first initial recommendation;
placing an initial convex lens with a value within a range [+0.50; +1.00] dioptres in front of the individual's eyes:
if the individual prefers without the initial lens rather than with the initial lens, interrupting the method and generating a near vision assessment report including a second initial recommendation;
if the individual can see no difference with or without the initial lens, removing the initial lens:
if the individual has an adaptation time to see clearly again after removing the initial lens, placing the initial lens;
otherwise:
if the far vision assessment report does not advise a near vision assessment, interrupting the method and generating a near vision assessment report;
otherwise, placing the initial lens;
placing a first convex lens with a value within the range [+0.50; +1.00] dioptres in front of the individual's eyes:
if the individual has blurred vision after placing the first lens, interrupting the method and generating a near vision assessment report including a first recommendation;
placing a second convex lens with a value within the range [+0.50; +1.00] dioptres in front of the individual's eyes:
if the individual has blurred vision after placing the second lens, interrupting the method and generating a near vision assessment report including a first recommendation;
placing a third convex lens with a value within a range [+0.25; +0.50] dioptres in front of the individual's eyes:
if the individual has blurred vision after placing the third lens, interrupting the method and generating a near vision assessment report including a first recommendation;
placing a fourth convex lens with a value within the range [+0.25; +0.50] dioptres in front of the individual's eyes:
if the individual has blurred vision after placing the fourth lens and:
if the far vision assessment report does not advise a near vision assessment, interrupting the method and generating a near vision assessment report;
otherwise, interrupting the method and generating a near vision assessment report including a second recommendation;
placing a fifth convex lens with a value within the range [+0.25; +0.50] dioptres in front of the individual's eyes:
if the individual has blurred vision after placing the fifth lens and:
if the far vision assessment report does not advise a near vision assessment, interrupting the method and generating a near vision assessment report;
otherwise, interrupting the method and generating a near vision assessment report including a third recommendation;
placing a sixth convex lens with a value within the range [+0.25; +0.50] dioptres in front of the individual's eyes:
if the individual has blurred vision after placing the sixth lens and:
if the far vision assessment report does not advise a near vision assessment, interrupting the method and generating a near vision assessment report;
otherwise, interrupting the method and generating a near vision assessment report including a third recommendation;
otherwise:
removing the initial lens and the first, second, third, fourth, fifth and sixth lenses;
placing a first final convex lens of intermediate correction in front of the individual's eyes and then removing the first final lens and placing a second final convex lens of strong correction in front of the individual's eyes:
if the individual prefers the first final lens to the second final lens or if the individual can see no difference between the first and second final lenses, generating a near vision assessment report including a fourth recommendation;
otherwise, generating a near vision assessment report including a fifth recommendation.