Abstract
PurposeTo determine the risk between degree of myopia and myopic macular degeneration (MMD), retinal detachment (RD), cataract, open angle glaucoma (OAG), and blindness.MethodsA systematic review and meta-analyses of studies published before June 2019 on myopia complications. Odds ratios (OR) per complication and spherical equivalent (SER) degree (low myopia SER < –0.5 to > –3.00 diopter [D]; moderate myopia SER ≤ –3.00 to > –6.00 D; high myopia SER ≤ –6.00 D) were calculated using fixed and random effects models.ResultsLow, moderate, and high myopia were all associated with increased risks of MMD (OR, 13.57, 95% confidence interval [CI], 6.18–29.79; OR, 72.74, 95% CI, 33.18–159.48; OR, 845.08, 95% CI, 230.05–3104.34, respectively); RD (OR, 3.15, 95% CI, 1.92–5.17; OR, 8.74, 95% CI, 7.28–10.50; OR, 12.62, 95% CI, 6.65–23.94, respectively); posterior subcapsular cataract (OR, 1.56, 95% CI, 1.32–1.84; OR, 2.55, 95% CI, 1.98–3.28; OR, 4.55, 95% CI, 2.66–7.75, respectively); nuclear cataract (OR, 1.79, 95% CI, 1.08–2.97; OR, 2.39, 95% CI, 1.03–5.55; OR, 2.87, 95% CI, 1.43–5.73, respectively); and OAG (OR, 1.59, 95% CI, 1.33–1.91; OR, 2.92, 95% CI, 1.89–4.52 for low and moderate/high myopia, respectively). The risk of visual impairment was strongly related to longer axial length, higher myopia degree, and age older than 60 years (OR, 1.71, 95% CI, 1.07–2.74; OR, 5.54, 95% CI, 3.12–9.85; and OR, 87.63, 95% CI, 34.50–222.58 for low, moderate, and high myopia in participants aged >60 years, respectively).ConclusionsAlthough high myopia carries the highest risk of complications and visual impairment, low and moderate myopia also have considerable risks. These estimates should alert policy makers and health care professionals to make myopia a priority for prevention and treatment.
Highlights
AEGH and CAE contributed to the work presented here and should be regarded as equivalent first authors
Moderate, and high myopia were all associated with increased risks of myopic macular degeneration (MMD) (OR, 13.57, 95% confidence interval [CI], 6.18–29.79; Odds ratios (OR), 72.74, 95% CI, 33.18–159.48; OR, 845.08, 95% CI, 230.05–3104.34, respectively); retinal detachment (RD) (OR, 3.15, 95% CI, 1.92–5.17; OR, 8.74, 95% CI, 7.28–10.50; OR, 12.62, 95% CI, 6.65–23.94, respectively); posterior subcapsular cataract (OR, 1.56, 95% CI, 1.32–1.84; OR, 2.55, 95% CI, 1.98–3.28; OR, 4.55, 95% CI, 2.66–7.75, respectively); nuclear cataract (OR, 1.79, 95% CI, 1.08–2.97; OR, 2.39, 95% CI, 1.03–5.55; OR, 2.87, 95% CI, 1.43–5.73, respectively); and open angle glaucoma (OAG) (OR, 1.59, 95% CI, 1.33–1.91; OR, 2.92, 95% CI, 1.89–4.52 for low and moderate/high myopia, respectively)
The risk of visual impairment was strongly related to longer axial length, higher myopia degree, and age older than 60 years (OR, 1.71, 95% CI, 1.07–2.74; OR, 5.54, 95% CI, 3.12–9.85; and OR, 87.63, 95% CI, 34.50–222.58 for low, moderate, and high myopia in participants aged >60 years, respectively)
Summary
We aim to provide a systematic review of the visual morbidity of myopia
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