Sasaki H, Asano K, Kojima M, Sakamoto Y, Kasuga T, Nagata M, Takahashi N, Sasaki K, Ono M, Katoh N
Department of Ophthalmology, Kanazawa Medical University, Ishikawa, Japan.
Nippon Ganka Gakkai Zasshi. 1999 Jul;103(7):556-63.
An epidemiological survey of ocular disease was performed in a town of the Amami Islands in southwestern Japan.
A total of 339 participants over 40 years joined the survey. Among the 339 participants, the lens findings of 602 eyes of 301 subjects were analyzed.
The prevalence of lens opacification was 32.0, 54.0, 83.1, 96.9% and 100% among subjects in their 40, 50, 60, 70 s, and over 80 years. Lens opacification over grade II was 4.0, 12.7, 26.2, 60.0% and 83.3%. The cataract type most frequently seen was cortical (96.1%), followed by 48.5% with nuclear opacity and 14.7% with subcapsular type. A high prevalence was seen of pterygium at 25.4%. Although the prevalence of lens opacification was higher in the group with pterygium in their 70 s, no significant difference was noticed in persons in their 40, 50, 60 s, and over 80 years old between the pterygium and non-pterygium groups.
Similarly to the results of a previous survey in Okinawa, Noto, and Hokkaido, the main type of lens opacification was cortical in Amami. The prevalence of nuclear opacification and pterygium was higher than in Noto and Hokkaido, and close to that seen in Okinawa.
在日本西南部奄美群岛的一个城镇进行眼部疾病的流行病学调查。
共有339名40岁以上的参与者加入了该调查。在这339名参与者中,对301名受试者的602只眼睛的晶状体检查结果进行了分析。
40岁、50岁、60岁、70岁及80岁以上受试者的晶状体混浊患病率分别为32.0%、54.0%、83.1%、96.9%和100%。二级以上晶状体混浊分别为4.0%、12.7%、26.2%、60.0%和83.3%。最常见的白内障类型是皮质性(96.1%),其次是核性混浊(48.5%)和后囊下型(14.7%)。翼状胬肉的患病率较高,为25.4%。虽然70多岁患有翼状胬肉的人群中晶状体混浊的患病率较高,但在40岁、50岁、60岁及80岁以上的人群中,翼状胬肉组和非翼状胬肉组之间未发现显著差异。
与之前在冲绳、能登和北海道的调查结果相似,奄美地区晶状体混浊的主要类型是皮质性。核性混浊和翼状胬肉的患病率高于能登和北海道,接近冲绳地区所见。