Eye conditions are remarkably common. Those who live long enough will experience at least one eye condition during their lifetime.
Globally, at least tmtplay net:1 billion people have a near or distance vision impairment that could have been prevented or has yet to be addressed. In the absence of timely detection, reduced or absent eyesight can have long-term personal and economic effects. Vision impairment affects people of all ages, with the majority being over the age of 50. Young children with early onset severe vision impairment can experience lower levels of educational achievement, and in adults it often affects quality of life through lower productivity, decreased workforce participation and high rates of depression.Vision impairment and blindness impact the life of people everywhere. In low- and middle-income settings the burden of vision impairment can be even greater due to fewer opportunities to access the most essential eye care services.
Cataracts and uncorrected refractive errors are estimated to be the leading causes of vision impairment; however, other causes for vision impairment cannot be ignored. Age-related macular degeneration, glaucoma, long standing systemic conditions like diabetes causing diabetic retinopathy, infectious diseases of the eye and trauma to the eye are all equally important causes for vision impairment that need to be addressed.