Who was the enemy of the usa during the cold war?

It was the Soviet Union. They both had different ideological ideas which led to the conflict between them.

Hope this helps :)

The Soviet Union. Tensions began from back in WW2. Soon the whole world was effected by the Red Scare. This is because the SU's communism was a threat to worldwide democracy.

True blindness may be caused by trauma to the eye, severe conjunctivitis due to  ibr (infectious bovine rhinoceros) or pink eye or other infections, leptospirosis, lead poisoning, selenium toxicity, fungal infections, vitamin a  deficiencies, rabies, vitamin b12 deficiency, neoplastic of the orbit or  conjunctiva, cataracts, congenital malformations, etc.