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Ellina Rakhimova, Mukharram Bikbov, Gyulli Kazakbaeva, Iulia Rusakova, Azalia Tulyakova, Albina Fahretdinova, Ainur Gizzatov, Songhomitra Panda-Jonas, Kamila Safiullina, Natalya Bolshakova, Jost Jonas; Prevalence and Causes of Vision Impairment and Blindness in a Very Old
Population in Russia. The Ural Very Old Study. Invest. Ophthalmol. Vis. Sci. 2020;61(7):3350.
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© ARVO (1962-2015); The Authors (2016-present)
To assess the prevalence and associated factors of visionimpairment and blindness in a very old Russian population.
The population-based Ural Very Old Study (UVOS) was performedin the city of Ufa/Russia with the inclusion criterion of living inthe study region and having an age of 85+ years.
The study included 810 individuals (595 (73.5%) women) with amean age of 88.1 ± 2.7 years (median:87 years; range: 85 to 97 years)and a mean axial length of 23.1 ± 1.1 mm(median:23.0mm;range:19.5-28.8mm). Prevalence of blindness (defined asbest corrected visual acuity (BCVA)<3/60 in the better eye) andmoderate or severe vision impairment (MSVI) (BCVA <6/18 but ≥3/60in the better eye) was 42/810 (5.2%;95%CI:3.7,6.7) and 273/810(33.7%;95%CI:30.4,37.0).Both rates increased from 5.0%(95%CI:2.1,7.9) and 34.8%(95%:28.5,41.2) in the 85-86-years-olds to 13.3%(95%CI4.5,22.2) and45.0%(95%CI:32.0,58.0) in the 93+ years-olds. The major causes forblindness were age-related macular degeneration (n=16;38%), cataract(n=12;29%), glaucoma (n=8;19%), and other retinal or optic nervediseases (n=6;14%). The major causes for MSVI were cataract(n=120;44%), age-related macular degeneration (n=74;27%), glaucoma(n=25;9%), diabetic retinopathy (n=4;1.5%), other retinal or opticnerve diseases (n=17;6%), and others.
In this very old population from Russia, prevalence ofblindness and MSVI is high, with age-related macular degeneration asthe most common cause for blindness and cataract for MSVI. For 132(42%) out of all blind or MSVI-affected individuals, vision impairmentcould be treated by cataract surgery.
This is a 2020 ARVO Annual Meeting abstract.
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