Abstract

DEL ROCIO GALLEGOS MURILLO, Mónica. Refractive and Visual Acuity Changes in pre- and post-surgical patients with Pterygium  . Vive Rev. Salud [online]. 2020, vol.3, n.9, pp.187-197. ISSN 2664-3243.

Abstract The surgical treatment of the pterygium is one of the most performed procedures in the ophthalmologic consultation, although it often involves discomfort and changes in visual acuity. Objective: to show if there are changes in visual acuity and its ametropia, in patients diagnosed with surgically intervened pterygium, in the city of Quito. Method: This is a longitudinal observational study that included 161 patients. Visual acuity and ametropia were compared before and 15 days after surgery. Results: most of the patients were female (n = 118, 73%), were between 30 and 59 years old (n = 127, 79%), presented grade III pterygium (n = 113, 70%) and was operated on the right eye (n = 89, 55%). The visual acuity of the patients improved slightly. The number of patients with visual acuity 20/20 increased from 68 (42%) to 72 (45%). There was also a decrease in the number of patients with visual acuity 20/350, 20/200, 20/100, 20/80, 20/60 and 20/50. There were no changes in the number of ametropic patients that remained in 69 (43%). Both the number of people with compound myopic astigmatism, and with mixed astigmatism axis against the rule decreased from 11 (7%) to 8 (5%) and from 24 (15%) to 16 (10%), respectively. Conclusion: both visual acuity and ametropia of patients with pterygium improve slightly after receiving surgical treatment.

Keywords : pterygium; visual acuity; refraction; ametropia.

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