NGHIÊN CỨU YẾU TỐ LIÊN QUAN ĐẾN TỔN THƯƠNG VÕNG MẠC HOÀNG ĐIỂM TRÊN LÂM SÀNG VÀ ĐỘ DÀY VÕNG MẠC HOÀNG ĐIỂM TRÊN OCT Ở MẮT CẬN THỊ CAO

Abstract

Objective: To find out the relationship between macular retinal changes with the macular retinal thickness by OCT in high myopia and some risk factors. Methods: A cross-sectional study on 168 eyes of 88 patients with high myopia was conducted between January 2020 and August 2020 at the Refraction Department of Vietnam National Institute of Ophthalmology. Data collected included history related to myopia progression and macular zone, macular thickness in OCT. Results: The maculopathy 66.1%, tessellated fundus 60.7%, diffuse choroiretinal atrophy 4.2%, patchy choroiretinal atrophy 1.2%. Macular thickness average was 244.93 ± 29.09 µm, thinnest was 124 µm and thicknest was 344 µm. Macular thickness in tessellated fundus, diffuse choroiretinal atrophy were thinner than patchy choroiretinal atrophy. The risk factors of myopia-related retinal changes: high power of myopic, longer axial length, duration of myopia and age of patients related to myopic maculopathy. But no evidence of these risk factors related with macular thickness in OCT despite of thinner of macular thickness in high myopia patients. Conclusions:  The thickness of macular retinal by OCT in the eyes with macular retinal changes is thinner. Myopic level, axial length, age and duration of myopia were the risk factors of myopia-related retinal changes.