Comparative characteristics of changes in visual acuity according to test lighting in healthy people and in patients with myopia

• Tamara Gumarovna Tlupova Kabardino-Balkarian State University named after H.M. Berbekov Nalchik, Russia http://orcid.org/0000-0002-8231-7348
• Diana Arsenovna Teuvazhukova North Ossetian State Medical Academy Vladikavkaz, Russia. http://orcid.org/0000-0002-2025-0045
• Aslan Alekseevich Teuvov Kabardino-Balkarian State University named after H.M. Berbekov Nalchik, Russia http://orcid.org/0000-0003-3405-937X
• Arthur Mukharbievich Baziev Kabardino-Balkarian State University named after H.M. Berbekov Nalchik, Russia http://orcid.org/0000-0001-6360-6577
• Irina Korneevna Tkhabisimova Department of Faculty and Endoscopic Surgery Kabardino-Balkarian State University named after H.M. Berbekov Nalchik, Russia http://orcid.org/0000-0002-6223-430X
• Aslan Zhamalovich Zhashuev Department of Faculty and Endoscopic Surgery Kabardino-Balkarian State University named after H.M. Berbekov Nalchik, Russia http://orcid.org/0000-0002-6223-430X

DOI: https://doi.org/10.46925//rdluz.33.28

Keywords: lighting; myopia; visual acuity

Abstract

The objective of the work consisted of comparing the characteristics of the changes in visual acuity as a function of the illumination of the tests in healthy individuals and in patients with myopia, examining two groups (50 people each): a control group of healthy individuals and patients with high myopia with visual acuity with optimal correction above 1.0. Visual acuity was determined under different lighting conditions (from 50Lx to 400Lx) using optotype tables with a small step of 0.05, and increasing the function δ, which is the difference between these values. δ in healthy individuals is 0.7, and in individuals with myopia it is equal to 0.55, which is a fairly high indicator and confirms the absence of contraindications to attract this category of patients to various types of visually strenuous work, including driving.

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