Search results
Results from the WOW.Com Content Network
This condition is one of the leading causes that leads to blindness in patients in the age range of 20–60 years old. Retinitis may be caused by several infectious agents, including toxoplasmosis, [1] cytomegalovirus and candida. [2] Cytomegalovirus retinitis is an important cause of blindness in AIDS patients. [2]
The burden of onchocerciasis: children leading blind adults in Africa. Childhood blindness can be caused by conditions related to pregnancy, such as congenital rubella syndrome and retinopathy of prematurity. Leprosy and onchocerciasis each blind approximately 1 million individuals in the developing world.
Onchocerciasis is the second leading cause of blindness from infectious causes. Main disease symptoms, such as blindness and itching, contribute to disease burden by limiting the infected individuals' ability to live and work. Individuals most at risk live or work in areas where Simulium blackflies are most common, mostly near rivers and streams.
NAION is the second most common optic nerve disease in the U.S., ... is the leading cause of blindness in adults and is caused by damage to the retina from high blood sugar levels.
There are many diseases known to cause ocular or visual changes. Diabetes , for example, is the leading cause of new cases of blindness in those aged 20–74, with ocular manifestations such as diabetic retinopathy and macular edema affecting up to 80% of those who have had the disease for 15 years or more.
It was estimated by the WHO in 2004 that 314 million people worldwide are vision impaired (from all causes), of whom 45 million are blind. [14] Vision disorders are not often targeted by public health initiatives, as mortality causes take priority. [15]
Frequently, retinopathy is an ocular manifestation of systemic disease as seen in diabetes or hypertension. [3] Diabetes is the most common cause of retinopathy in the U.S. as of 2008. [4] Diabetic retinopathy is the leading cause of blindness in working-aged people. [5]
Dietary antioxidant vitamins, minerals, and carotenoids do not appear to affect the onset; [5] however, dietary supplements may slow the progression in those who already have the disease. [5] Age-related macular degeneration is a main cause of central blindness among the working-aged population worldwide. [6]