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随着社会的发展,生活的改善,医疗保健的进步,日本人的平均寿命和30年前相比,已延长了20多岁。根据1982年的统计,男性平均寿命为74.22岁,女性为79.66岁。因此,在总人口中,65岁以上的人口比率也在逐渐增加。现在每10人中有1人;到下世纪初每6人中将有1人;到下世纪中期,估计每4人中将有1人。由于总人口中年龄结构变化,眼科病人数和病种结构也发生了变化。据中岛教授的报道,在20岁的10万人口中,有视觉障碍者为57人,而在70岁的10万人口中,将增加1798人。从医院和保健站的眼科患者统计(1960～1981)中,也清楚地见到这一情况。在眼科就诊病人中,1960年65岁以上的
With the development of society, the improvement of life and the advancement of health care, the average life expectancy of Japanese people has been extended by more than 20 years compared with 30 years ago. According to the 1982 statistics, the average life expectancy of men was 74.22 years and that of women was 79.66 years. Therefore, among the general population, the proportion of people over the age of 65 is also gradually increasing. There are now 1 out of every 10 people; by 6 in the early part of the next century there will be 1; by the middle of the next century it is estimated that there will be 1 out of every 4 people. Due to changes in the age structure of the general population, the number of ophthalmological patients and the structure of the disease have also changed. According to Professor Nakashima’s report, 57 of the 100,000 people aged 20 are visually-impaired, and 1,798 more of the 70-year-old population of 100,000. This is also clearly seen in the ophthalmological statistics of hospitals and health stations (1960-1981). In ophthalmology patients, 1960 and over 65 years of age