“…Countries in which pathologic ophthalmologic findings were more prevalent in indigenous adult populations compared with nonindigenous populations included New Zealand (moderate to severe diabetic retinopathy, 12.9% vs 4.3%), Australia (URE, 6.7% vs 4.0%; diabetic retinopathy, 39.4% vs 28.5%), Canada (diabetic retinopathy, 17.1% vs 10.7%), Brazil (odds ratio for trachoma, 1.06), and Ecuador (onchocercal microfilaria, 35.1% vs 18.1%). 88 Indirect interstudy comparisons pointed to higher disease rates in indigenous peoples compared with nonindigenous populations, including in Nigeria (glaucoma, 6.9% vs 5.0%), 114 the United States (cataract, 39.6% vs 17.2% 115 ; AMD, 35.2% vs 6.5% 116 ; and glaucoma, 12.9% vs 2.1% 117 ), Brazil (cataract, 13.7% and 24.5% 79 vs 4.9% 118 ; glaucoma, 8.1% vs 3.4% 119 ; and pterygium, 5.0%-36.6% vs 8.1% 120 ), and Taiwan (pterygium, 44.1% vs 25.2%). 121 Some interstudy comparisons suggest a higher disease prevalence in nonindigenous populations, including in the United States (diabetic retinopathy, 20.1% vs 35.1%), 122 Taiwan (AMD, 5.2% vs 11.1%), 123 and Australia (glaucoma, 1.1% vs 3.0% 124 ; myopia, 10.1% vs 17% 125 ).…”