A study of children who are between 2 and 5 years and there is vitamin A in their nutritional regime , and children who don’t use vitamin A and their insight problems.

There is 4 groups in this research such as ; A,B,C and D in which patients were studied during 3 years and they were examined annually after 2 years study , then , anyone who were abnormal we separated. Group A : are people between 2 and 3 years and the number of them were 40 with vitamin A in their nutritional regime. Group B : are people between 3 and 4 years and the number of them were 60 with vitamin A in their regime. Group C : are people between 4 and 5 years and the number of them were 35 with vitamin A in their regime. Group D : are people between 2 and 5 years and the number of them were 75 without vitamin A.

we can conclude that vitamin A has positive results in decreasing visual problems. Therefore , groups A,B, and C due to vitamin A in their regime have less problems in their sampling examinations. As it shows there is trivial visual problems without vitamin A in group D.

we can conclude that vitamin A in nutritional regime particularly in children between 2 and 5 years lead to prevent visual problems in the following years . As a result , it is recommanded in all over the world in order to decrease visual problems