Role of vitamin a in maintaining normal vision

Role of vitamin A in maintaining normal vision :

Vitamin A is very antioxidant and plays a role in many body functions. It promotes good vision and bone growth. It preserves the health of the skin and protects the body against infections.
Vitamin A is essential for vision, involved in triggering nerve impulses to the optic nerves.

Hiv can be transmitted through oral sex. you can get hiv through vaginal fluid and semen. if you have an open sore or cut in or near your mouth and an you get the semen or vaginal fluid of an infected person in those cuts or sores, you can get hiv