MỘT SỐ ĐẶC ĐIỂM KÍCH THƯỚC GIÁC MẠC, ĐỒNG TỬ Ở HỌC SINH TRUNG HỌC CƠ SỞ NGƯỜI KINH

Abstract

Introduction: The corneal radius of curvature, corneal diameter, and pupil diameter are important indexes in ophthalmology for diagnosis of refractive error, contact lens and intraocular lens design, diagnosis of congenital disabilities... This study determines the corneal size and pupil size of secondary school pupils. Method: Determining the corneal size and pupil size on 985 subjects, including 525 males and 460 females, measuring method by automatic refractometer ARK – 1. Results: The maximum corneal radius of curvature was 7,94 ±0,29 mm (8,02±0,27 mm in male; 7,86 ±0,29 mm in female). The minimum corneal radius of curvature was 7,71 ±0,27 mm (7,79 ±0,27 in male; 7,63 ±0,24 in female). The mean corneal radius of curvature was 7,83 ±0,28 mm (7,90 ±0,26 in male; 7,74 ±0,29 in female). The corneal diameter was 12,2 ±0,51 mm (12,3 ±0,52 mm in male; 12,1 ±0,47 mm in female). The pupil diameter was 6,1±0,70mm (6,2±0,70mm in males; 6,1±0,69mm in females). Corneal size in males was larger than that in females. There was no difference in pupil diameter by sex and between two eyes, in corneal size between two eyes. Conclusion: Corneal size in males was large than that one in females. There was no difference in pupil size by sex; there was no difference in corneal radius of curvature, corneal diameter, and pupil diameter between the right and left eyes.