Clinical epidemiological study of the main physiological phenomena of vision in gamaóptica

Abstract

Vision is not only limited to visual acuity, there are other parameters to achieve perfect vision. A descriptive, longitudinal, retrospective study was carried out in Gamaóptica, Latacunga-Ecuador, in the year 2020, to know the clinical epidemiological characteristics of the main physiological phenomena of vision. A sample of 120 patients was studied where variables such as: age, sex, occupation, visual acuity, Ishihara Test, Titmus Test and Worth's light test were explored. The qualitative variables were summarized using absolute and relative percentage frequencies. The X2 test was used at 95% certainty to compare frequencies or associate variables. In the study prevailed: the female sex with 51.7%, the age group of 15-24 years with 28.3% and the economically inactive population with 46%. 46.7% of the individuals presented visual acuity without binocular correction of distance with visual limitation, according to the Ishihara Test, 98.3% of the sample were standard people, 69.2% of the sample had normal binocular vision according to Worth's lights and 88.3% of the individuals reached a stereopsis of 40 seconds of bows. Alterations were detected, in a lower percentage, in all the tests applied to evaluate visual function: Ishihara Test (1.7%), Worth's Lights (30.8%), Titmus Test (11.7%).