ABSTRACT
Objective To investigate the changes of refractive status in 5-12 years old high mypoic children,and determine their visual prognosis after 5 years.Methods A total of 52 high myopic patients treated in our hospital,aged 5 years to 12 years,were enrolled in the study.Every enrolled patient underwent complete ophthalmological examinations every 6 months to 1 year,including best corrected visual acuity (BCVA),cycloplegic refraction,fundus examination and axial length measurement.Resuits The mean myopia progression of the 52 patients was (-0.66 ± 0.43) D per year.32 patients(61.5％)showed binocular progression,4 patients(7.7％)showed monocular progression,and 16 patients (30.8％) showed binocular stability.The myopic progression rate of the patients whose initial refraction from-6.0 D to-9.0 D was 86.4％,from-9.0 D to-12.0 D was 68.8％,and ＞-12.0 D was 42.9％,respectively,there were obvious differences (P ＜ 0.05).The myopic progression rate of the patients who had family history of high myopia was 88.2％,and no family history was 60.0％,there was obvious difference (P ＜ 0.05).The myopic progression rates were not significant different between different age level and different sex (all P ＞ 0.05).41 patients (78.8％) of high myopes demonstrated a final BCVA ≥ 0.5 in both eyes,and 34 patients(65.4％) ≥0.8.The rates of patients whose fmal BCVA ≥0.5 in both eyes were 95.5％,75.0％ and 57.1％ for whose initial refraction were from-6.0 D to-9.0 D,from-9.0 D to-12.0 D and ＞-12.0 D,respectively,there was obvious difference (P ＜ 0.05).Conclusion The 5-12 years old high myopic children will progress in a relatively quick level every year.The initial refraction level and family history of high myopia are risk factors associated with myopia progression.Most of high myopic children will have a relatively good vision.
