ĐẶC ĐIỂM LÂM SÀNG CỦA NGƯỜI KHIẾM THỊ TUỔI TRƯỞNG THÀNH

Abstract

Aims: To discribe the clinical characteristics of low vision in adults. Methods: The descriptive study was conducted in 167 low vision people from 18 to 78 years old. Results: The average age was 31,46 ± 16,47; Un-married patients and living with their parents accounted for the most 56.3%. Causes of low vision according to pathology: the most common group was lens related disorder 34.1%; the second most common group was macular retinopathy 23.3%; the third most common group was optical nerve damage 14.4%. The average distance visual acuity was 20/333 ± 20/500; 41.3% cases improved with the best correction glasses. 73.7% of contrast sensitivity cases were below 10%. All cases of glaucoma and retinal pigmentose degeneration cases damaged the peripheral field of severe levels. The average near visual acuity was 20/285 ± 20/400. Distant vision and near vision have a medium-degree linear connection to r = 0.45 (p=0.001). Conclusion: Patient age: most of working age, mostly living with family or relatives. The main cause of low vision was lens related disorder. Distance visual acuity was very bad, but improved with the best correction glasses. Good contrast sensitivity accounted for 73.7% of cases. The peripheral field was badly damaged and difficult to assess. The near visual acuity was better than the distance visual acuity. Distant vision and near vision are linearly favorable.