Miyata Kimie, Yoshikawa Tadanobu, Mine Masashi, Nishi Tomo, Okamoto Nozomi, Ueda Tetsuo, Kawasaki Ryo, Kurumatani Norio, Ogata Nahoko
Department of Ophthalmology, Nara Medical University, Kashihara, Japan.
Department of Epidemiology and Preventive Medicine, Nara Medical University, Kashihara, Japan.
Biores Open Access. 2017 Apr 1;6(1):28-34. doi: 10.1089/biores.2017.0007. eCollection 2017.
The aim of this study was to determine the presence of prior cataract surgery and best-corrected visual acuity (BCVA) in an elderly Japanese cohort. The Fujiwara-kyo Eye Study was a prospective, population-based, cross-sectional epidemiological study. The subjects were ≥68 years who lived in the Nara Prefecture and responded to recruitment notices. All of the subjects underwent comprehensive ophthalmological examinations, and the sociodemographic information and medical history, including prior cataract surgery, were obtained by answers to a questionnaire. The associations between the BCVA, age, sex, and history of cataract surgery were determined. A total of 2,873 subjects whose mean age was 76.3 ± 4.9 (mean ± standard deviation) years were studied. The mean BCVA was -0.020 ± 0.14 logarithm of the minimum angle of resolution units, and it was significantly better in the group with education ≥13 years ( < 0.01). Overall, 24.2% of the subjects had undergone cataract surgery, and 41.7% of the subjects ≥80 years had undergone cataract surgery. The incidence of prior cataract surgery increased with increasing age ( < 0.001 for trend). The mean BCVA of eyes with cataract surgery was significantly better than that of eyes without cataract surgery in subjects ≥80 years ( < 0.01). Visual acuity was generally good in this cohort of elderly Japanese subjects. In this cohort, 24.2% of the subjects had undergone cataract surgery, and the subjects ≥80 years had better BCVA than those without cataract surgery.
本研究旨在确定日本老年队列中既往白内障手术的情况以及最佳矫正视力（BCVA）。藤原京眼科研究是一项基于人群的前瞻性横断面流行病学研究。研究对象为居住在奈良县且年龄≥68岁并回应招募通知的人群。所有研究对象均接受了全面的眼科检查，并通过问卷回答获取社会人口统计学信息和病史，包括既往白内障手术情况。确定了BCVA、年龄、性别与白内障手术史之间的关联。共研究了2873名平均年龄为76.3±4.9（均值±标准差）岁的研究对象。平均BCVA为-0.020±0.14最小分辨角对数单位，在受教育年限≥13年的组中显著更好（<0.01）。总体而言，24.2%的研究对象接受过白内障手术，80岁及以上的研究对象中有41.7%接受过白内障手术。既往白内障手术的发生率随年龄增长而增加（趋势检验P<0.001）。在80岁及以上的研究对象中，接受过白内障手术的眼睛的平均BCVA显著优于未接受白内障手术的眼睛（<0.01）。在这一日本老年研究队列中，视力总体良好。在该队列中，24.2%的研究对象接受过白内障手术，80岁及以上的研究对象的BCVA优于未接受白内障手术的研究对象。
