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目的 :确定天津市眼科医院低视力门诊 40岁以上患者中的高度近视眼为低视力之首位原因。研究其视力减退原因及康复方式。方法 :低高度近视所致的低视力患者 85例 ,做详细的眼部检查及视力矫正 ,使用不同类型的低视力助视器并比较其效果。结果 :根据世界卫生组织 (WHO)关于低视力的分类标准 ,85例中有 82例 (96 .47% )为Ⅰ级低视力 ,仅 3例 (3.5 3% )为Ⅱ级低视力。视力减退的主要原因是视网膜脉络膜退行性变化、并发性白内障及视网膜脱离等。应用远用助视器使 38例患者的远视力达到 0 .3或 0 .3以上 ,说明有 44 .70 %的低视力患者可获得有用视力。结论 :高度近视所致的低视力应用低视力助视器可以获得有效的康复
Objective: To determine the first cause of low vision in high myopia in patients over 40 years of age in low vision clinics of Tianjin Eye Hospital. Study the causes of vision loss and rehabilitation methods. Methods: 85 patients with low vision due to low myopia were examined with detailed eye examination and vision correction. Different types of low vision vision aids were used and their effects were compared. Results: According to WHO classification criteria of low vision, 82 (96.47%) of 85 cases were grade Ⅰ low vision and only 3 cases (3.5%) had Ⅱ grade low vision. The main reason of vision loss is retinal choroid degenerative changes, complicated cataracts and retinal detachment. Far from the application of vision aid device 38 patients with far vision up to 0.3 or 0.3, indicating that 44.70% of low vision patients can obtain useful vision. Conclusions: Low vision due to high myopia can be effectively recovered with low vision aid