Nhận xét đặc điểm tật khúc xạ ở lứa tuổi tiểu học khám tại Bệnh viện Mắt Trung ương

Objective: Comments on refractive error (RE) characteristics of primary school age and to analyze some relative factors. Methodology: patients aged 612 with RE visited VNIO. Invalid patients: unable to be checked RE. Design: cross-sectional study. Taking history, reasons and previous treatment. examination: RE measured both before and after cydoplegla; diagnosing RE and degree of astigmatism. Analyses of RE results by age groups, sex, after plegia and measurement methods. Data processing: Epi-Info 6.0. Results: 52.44 percent patients coming by blurry vision; 53.64 percent by late examination; 36.6 percent corrected by glasses; of whom 25 percent of myopia patients overcorrected by glasses. Measured by sphericalequivalent . refractive error (SE); 71.95 percent, 21.34 percent; 2.44 percent are slight, average and severe levels respectively. 90.24 percent astigmatism (Induding physiological astigmatism); of which, 94.59 percent with-therule; 4.06 percent against-the-rule and oblique astigmatism. 35.37 percent anisometropia and 4 diopters In maximum. The myopia rate Increases with age group. SE level in pre and post-accomodative palsy was different by 0.42D in average and the highest is 3.5D. Refraction results were related with age groups, using cydoplegia medldne and measurement methods. Conclusions: 52.44 percent patients coming by blurry vision; 53.64 percent by late examination; 36.6 percent corrected by glasses, of whom 25 percent of myopia patients overcorrected by glasses. 71.95 percent, 21.34 percent; 2.44 percent are slight, average and severe levels respectively. 90.24 percent astigmatism. 35.37 percent anisometropia and 4 diopters in maximum. Refraction results were related with age groups, using accommodative palsy medidne and measurement methods.