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Africans have a 50% chance of cataract distance. Cataracts are caused by
ultraviolet rays from strong sunlight, so they have to use hats or sunglasses,
Africans are poor enough to buy it. Therefore, buying sunglasses can also
be delivered to consumers and children in poor areas suffering from ultraviolet rays.
Hyupsung university
hwasung si, South Korea
eunji go,
Hyupsung University
kyounghwan park,
Hyupsung University
youngjon um,
Hyupsung University
daheuck son,
Hyupsung University