Discussion Our results show that the global prevalence of visual impairment due to cataract and DALYs of cataract showed an increasing trend from 1990 to 2019, with a higher burden found in low socio-economic areas.
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Time trends and heterogeneity in the disease burden of visual impairment due to cataract, 1990-2019: A global analysis.
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The sentences
The crude prevalence of visual impairment due to cataract and DALYs of cataract increased steadily from 1990 to 2017, but showed a decreasing trend afterward until 2019; this decreasing trend could more clearly be seen in age-standardized rates ( Figures 1 , 2 ).