Okpu agha

1. Nchedo anya ihe nzacha okpukpu abụọ iji zere ultraviolet na-emerụ ahụ na radieshon infrared nke arc na-emepụta, yana imebi anya nke ọkụ ịgbado ọkụ siri ike na-akpata, ma gbochie ihe omume electro-optic ophthalmia.2. Nchedo ihu na-egbochi nke ọma na splashes na ihe ndị na-emerụ ahụ na ọrụ ahụ site na imebi ihu, ma belata ihe ọkụ ọkụ.3. Nchekwa iku ume ndu nduzi ikuku, nke ọma na-ebelata ikuku na-emerụ ahụ na uzuzu a na-ewepụta site na ịgbado ọkụ na ahụ na igbochi ọrịa pneumoconiosis nke ọrịa ọrụ.