论文部分内容阅读
为反映个体对比视力的变化趋向，对１３１例（男９１例，女４０例）受检者的对比视力进行跟踪五年的比较研究。以《字母对比视力表》检测受检者的对比视力。结果发现，在临床远视力没有发生变化的情况下，年龄２１～４０岁受检者，五年后的对比视力基本上没有变化；年龄４６～５０岁受检者，五年后有近２０％的受检者眼的对比视力开始下降。年龄５１～５５岁受检者，五年后有近４０％的受检者眼的对比视力下降。年龄５６岁以上受检者，五年后有近３０％的受检者眼的对比视力下降。
In order to reflect the changing trend of individual visual acuity, comparative study of comparative visual acuity of 131 subjects (91 males and 40 females) was conducted for five years. Contrast visual acuity of subjects was tested by “alphabetical contrast chart”. The results showed that in clinical no change in far vision, the subjects aged 21 to 40 years after five years of comparative acuity basically unchanged; subjects aged 46 to 50 years after five years, nearly 20% Of subjects had a decrease in their eyesight. Subjects aged 51 to 55 years old, after five years, nearly 40% of subjects had decreased visual acuity in the eyes. Subjects over 56 years of age, after five years, nearly 30% of subjects had decreased visual acuity.