Jialiang Zhao1, Xiao Xu2, Leon B Ellwein3, Huaijin Guan4, Mingguang He5, Ping Liu6, Jianhua Lv7, Xunlun Sheng8, Peizeng Yang9, Jinglin Yi10, Ning Cai11, Mei Yang4, Guangming Jin5, Fei Leng6, Fengrong Li12, Yanping Li10, Hong Lu4, Wenqiang Shao7, Shengfang Song13, Yuansheng Yuan11, Wenjuan Zhuang8, Lei An2. 1. Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Beijing, China. Electronic address: zhjialiang@163.com. 2. Rehabilitation Administration Department, National Institute of Hospital Administration, Beijing, China. 3. National Eye Institute, National Institutes of Health, Bethesda, Maryland, USA. 4. Affiliated Hospital, Nantong University, Nantong, China. 5. State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China. 6. First Clinical Hospital, Harbin Medical University, Harbin, China. 7. Hebei Eye Hospital, Xingtai, China. 8. Ningxia Eye Hospital, Ningxia People's Hospital, Yinchuan, China. 9. The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Ophthalmology, and Chongqing Eye Institute, Chongqing, China. 10. Affiliated Eye Hospital, Nanchang University, Nanchang, China. 11. Yunnan Medical University, Kunming, China. 12. Beijing Hospital of Traditional Chinese Medicine, Beijing, China. 13. Yongchuan Hospital of Chongqing Medical University, Chongquing, China.
Abstract
PURPOSE: To estimate surgical coverage of cataract-related vision impairment and blindness and visual acuity outcomes in operated eyes in rural China in 2014 with comparisons with the 2006 Nine-Province Survey. DESIGN: Population-based, cross-sectional study. METHODS: Geographical cluster sampling was used in randomly selecting residents from a rural county or semi-rural district within 9 provinces: Beijing, Jiangsu, Guangdong, Heilongjiang, Jiangxi, Hebei, Ningxia, Chongqing, and Yunnan. Persons 50 years of age or older were enumerated through household visits and invited to examination sites for visual acuity testing and ocular examination. Surgical coverage and visual acuity outcomes in 2014 were compared with data from the 2006 survey. RESULTS: Among 51 310 examined persons, surgical coverage among those presenting with cataract-related severe visual impairment or blindness (<20/200) was 62.7% overall, ranging from 43.4% to 83.6% across the 9 study sites. Unoperated cataract was significantly associated with older age, female sex, and lack of education. Presenting visual acuity outcomes ≥ 20/63 in cataract-operated eyes was 62.2% overall, ranging from 51.6% to 78.6%, and 75.2%, ranging from 67.1% to 81.5%, with best-corrected visual acuity. As a proportional percentage of cataract surgical coverage in 2006, overall surgical coverage increased by 81.4% during the 2006-2014 interval, and by 110% when adjusted for visual acuity outcomes ≥ 20/63. CONCLUSIONS: Cataract blindness control is well underway in rural China, as evidenced by significant increases in cataract surgical coverage and improvement in visual acuity outcomes during the 2006-2014 interval. Further efforts are needed to provide greater access to affordable cataract surgery for the elderly, female persons, and those with little or no education.
PURPOSE: To estimate surgical coverage of cataract-related vision impairment and blindness and visual acuity outcomes in operated eyes in rural China in 2014 with comparisons with the 2006 Nine-Province Survey. DESIGN: Population-based, cross-sectional study. METHODS: Geographical cluster sampling was used in randomly selecting residents from a rural county or semi-rural district within 9 provinces: Beijing, Jiangsu, Guangdong, Heilongjiang, Jiangxi, Hebei, Ningxia, Chongqing, and Yunnan. Persons 50 years of age or older were enumerated through household visits and invited to examination sites for visual acuity testing and ocular examination. Surgical coverage and visual acuity outcomes in 2014 were compared with data from the 2006 survey. RESULTS: Among 51 310 examined persons, surgical coverage among those presenting with cataract-related severe visual impairment or blindness (<20/200) was 62.7% overall, ranging from 43.4% to 83.6% across the 9 study sites. Unoperated cataract was significantly associated with older age, female sex, and lack of education. Presenting visual acuity outcomes ≥ 20/63 in cataract-operated eyes was 62.2% overall, ranging from 51.6% to 78.6%, and 75.2%, ranging from 67.1% to 81.5%, with best-corrected visual acuity. As a proportional percentage of cataract surgical coverage in 2006, overall surgical coverage increased by 81.4% during the 2006-2014 interval, and by 110% when adjusted for visual acuity outcomes ≥ 20/63. CONCLUSIONS:Cataract blindness control is well underway in rural China, as evidenced by significant increases in cataract surgical coverage and improvement in visual acuity outcomes during the 2006-2014 interval. Further efforts are needed to provide greater access to affordable cataract surgery for the elderly, female persons, and those with little or no education.
Authors: Jacqueline Ramke; Clare E Gilbert; Arier C Lee; Peter Ackland; Hans Limburg; Allen Foster Journal: PLoS One Date: 2017-03-01 Impact factor: 3.240
Authors: Chan Ning Lee; Jacqueline Ramke; Ian McCormick; Justine H Zhang; Ada Aghaji; Nyawira Mwangi; Helen Burn; Iris Gordon; Mayinuer Yusufu; Mingguang He; Juan Carlos Silva; Matthew J Burton Journal: BMJ Open Date: 2020-07-08 Impact factor: 2.692
Authors: Miho Yoshizaki; Jacqueline Ramke; João M Furtado; Helen Burn; Stephen Gichuhi; Iris Gordon; Ada Aghaji; Ana P Marques; William H Dean; Nathan Congdon; John Buchan; Matthew J Burton Journal: BMJ Open Date: 2020-08-11 Impact factor: 2.692