Question

more than the entire population of africa and south america
error and corection​

Answer 1

Answer:

Globally, the leading causes of vision impairment are:

uncorrected refractive errors

cataract

age-related macular degeneration

glaucoma

diabetic retinopathy

corneal opacity

trachoma

There is some variation in the causes across countries. For example, the proportion of vision impairment attributable to cataract is higher in low- and middle-income countries than high-income countries. In high income countries, diseases such as diabetic retinopathy, glaucoma and age-related macular degeneration are more common.

Among children, the causes of vision impairment vary considerably across countries. For example, in low-income countries congenital cataract is a leading cause, whereas in middle-income countries it is more likely to be retinopathy of prematurity