Progression of Near Vision Loss and Incidence of Near Vision Impairment in an Adult Chinese Population
Xiaotong Han, Leon B Ellwein, Xinxing Guo, Yin Hu, William Yan, Mingguang He
Ophthalmology | ELSEVIER SCIENCE INC | Published : 2017
PURPOSE: To investigate the progression of near vision loss and the cumulative incidence of near vision impairment (NVI) 6 years after initial examination of an urban Chinese cohort. DESIGN: Population-based, prospective cohort study. PARTICIPANTS: People aged ≥35 years examined at baseline in the Yuexiu District of Guangzhou, China. METHODS: Participants examined at baseline were invited for 2-year and 6-year follow-up examinations in 2010 and 2014, respectively. Examinations included noncycloplegic autorefraction and binocular near visual acuity (NVA) with and without current near correction measured at 40 cm using a LogMAR ETDRS near vision tumbling E chart. Those with uncorrected binocul..View full abstract
Awarded by World Health Organization, Geneva, Switzerland (under National Institutes of Health, Bethesda, MD)
Awarded by National Natural Science Foundation of China
Awarded by Science and Technology Planning Project of Guangdong Province
Supported by the World Health Organization, Geneva, Switzerland (under National Institutes of Health, Bethesda, MD, contract no. N01-EY-2103) and by the Fundamental Research Funds of the State Key Laboratory in Ophthalmology at the Zhongshan Ophthalmic Center. Dr He receives support from the University of Melbourne Research at Melbourne Accelerator Program Professorship, National Natural Science Foundation of China (81420108008), Science and Technology Planning Project of Guangdong Province (2013B20400003). The Centre for Eye Research Australia receives operational infrastructural support from the Victorian government. These funding organizations had no role in the design or conduct of this research.