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Vision Improvement with Refractive Correction Does Not Completely Exclude Major Eye Diseases: Analyses of Visually Impaired South Korean Population in the Korea National Health and Nutrition Examination Survey 2009-2011
- Vision Improvement with Refractive Correction Does Not Completely Exclude Major Eye Diseases: Analyses of Visually Impaired South Korean Population in the Korea National Health and Nutrition Examination Survey 2009-2011
- Suh, Young-Woo; Lee, Ji Sung; Heo, Hwan; Park, Shin Hae; Kim, Seung-Hyun; Lim, Key Hwan; Moon, Nam Ju; Lee, Sung Jin; Park, Song-Hee; Baek, Seung-Hee
- Ewha Authors
- SCOPUS Author ID
- Issue Date
- Journal Title
- JOURNAL OF OPHTHALMOLOGY
- 2090-004X; 2090-0058
- HINDAWI LTD
- SCIE; SCOPUS
- Purpose. To investigate the association between vision improvement with refractive correction in the visually impaired eyes and the prevalence of ocular comorbidities in the South Korean population. Materials and Methods. The data of 24,620 individuals in the Korea National Health and Nutrition Examination Survey (KNHANES 2009-2011) were reviewed. Visual impairment was defined as a presenting visual acuity < 20/60. The participants with visual impairment in at least one eye were divided into 3 groups according to the best-corrected visual acuity (group 1: < 20/30, group 2: >= 20/30 but < 20/25, and group 3: >= 20/25). The prevalence of ocular comorbidities was estimated and compared between the three groups. Results. Visual impairment in at least one eye was found in 3031 individuals. Groups 1, 2, and 3 comprised 23.5%, 22.2%, and 54.3% of these visually impaired eyes, respectively. The prevalence of cataract, diabetic retinopathy, age-related macular degeneration, corneal opacity, blepharoptosis, and pterygium was similar to or even higher in group 2 compared to group 1. The prevalence of glaucoma and age-related macular degeneration was 5.40% and 11.39%, respectively, in group 2 and 3.31% and 3.76%, respectively, in group 3. Conclusions. Appropriate ophthalmologic examination is necessary even if people exhibit vision improvement after optical correction.
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