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Vitamin A deficiency is the world's leading cause of preventable childhood blindness, [1] and is critical to achieving Millennium Development Goal 4 to reduce child mortality. About 250,000 to 500,000 malnourished children in the developing world go blind each year from a deficiency of vitamin A, around half of whom die within a year of ...
The global leading cause of blindness in 2020 remained cataract. [ 8 ] By March 2022, 14 countries had reported achieving elimination goals for trachoma , but it remains hyperendemic in parts of rural Africa, Central and South America, Asia, Australia and the Middle East.
Vitamin A deficiency is a leading cause of preventable childhood blindness, particularly in developing countries. Vitamin A deficiency is defined as a serum (blood) concentration of less than 0.70 μmol/L while a severe deficiency is defined as less than 0.35 μmol/L, per the Centers of Disease Control National Health and Nutrition Examination ...
The number of individuals blind from trachoma has decreased in the past 10 years from 6 million to 1.3 million, putting it in seventh place on the list of causes of blindness worldwide. Central corneal ulceration is also a significant cause of monocular blindness worldwide, accounting for an estimated 850,000 cases of corneal blindness every ...
Age-related cataracts are responsible for 51% of world blindness, about 20 million people. [68] Globally, cataracts cause moderate to severe disability in 53.8 million (2004), 52.2 million of whom are in low and middle income countries. [69] In many countries, surgical services are inadequate, and cataracts remain the leading cause of blindness ...
Another vision problem, diabetic retinopathy, is the leading cause of blindness in adults and is caused by damage to the retina from high blood sugar levels. What’s more, risk factors for NAION ...
Corneal opacity is the 4th main cause of blindness globally (5.1%). [1] Using the World Health Organization's (WHO; Geneva, Switzerland) blindness definition,1 45 million people worldwide are bilaterally blind, of which 6 to 8 million are blind due to corneal disease. In some African areas, nearly 90% of the total blindness is due to corneal ...
Diabetic retinopathy is a leading cause of blindness. Helen Keller International helps prepare health care systems to identify and treat diabetic retinopathy. In collaboration with Chittagong Eye Infirmary and Training Complex and the Diabetes Association of Bangladesh, Helen Keller began a pilot project in 2009 to improve patients' access to sight-saving diabetic retinopathy treatment ...