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目的 观察儿童人工晶体植入后的屈光变化 ,为人工晶体屈光度的选择提供参考。方法 为 3～ 7岁白内障儿童 4 1人 5 4眼植入后房型人工晶体 ,术后 1个月行视网膜检影验光 ,每 6个月复验一次。平均随访 2 32年 ,对不同年龄组儿童的屈光变化进行比较。结果 各年龄组的屈光变化均向近视化漂移 ,漂移范围为 0 12 5D～ 3 6 5D ,≤ 2 0D者 4 5眼 (83 3% )。其中 3岁组的屈光变化 1 82D (0 5 0D～ 3 6 5D) ,4岁组为 1 2 3D (0 80D～ 1 88D) ,5岁组为 1 0 4D (0 12 5D～ 3 5 3D) ,6岁组为 1 10D (0 2 5D～ 2 75D) ,7岁组为 1 0 3D (0 5 0D～ 1 375D)。 3岁组的屈光度变化较大 ,与其他各年龄组比较 ,差异有显著性 (P <0 0 5 )。结论 儿童时期植入人工晶体屈光度向近视化漂移 ,漂移程度随年龄增加有减小趋势 ,绝大多数在可预测范围之内。
Objective To observe the refractive change after implantation of artificial lens in children and provide reference for the choice of refractive power of artificial lens. METHODS: A total of 41 eyes of 34 children aged 3 to 7 years old with cataract were implanted with posterior chamber intraocular lens (IOL). Retinal retinoscopy was performed one month after surgery and retesting was performed every 6 months. The average follow-up of 32 years, children of different ages were compared refractive changes. Results The refractive changes of all age groups all drifted towards myopia. The drift range was 0 12 5D ~ 36 5D, 45 eyes (83 3%) ≤ 20D. The refractive change of the 3-year-old group was 1 82D (0 5 0D ~ 3 5 5D), 4-year-old group was 1 2 3D (0 80D ~ 1 88D), while 5-year old group was 1 0 4D (0 12 5D ~ 35 3D ), 6-year-old group was 1 10D (0 2 5D ~ 2 75D), 7-year-old group was 1 0 3D (0 5 0D ~ 1 375D). The diopter changes in the 3-year-old group were larger than those in other age groups (P <0.05). Conclusion The intraocular lens (IOL) implanted in myopia has a tendency of myopia to drift toward myopia. The degree of drift decreases with increasing age, most of which fall within the predictable range.