Systematic Review
Effects of vitamin A supplementation on visual function in healthy adults: A systematic review
Kavous Shahsavarinia 1 
, Ali Mostafaei 1,2, Nooshin Milanchian 3 , Leila Roshangar 4, Parastu Fallahi 5, Moloud Balafar 5, Robab Mehdipour 1, Fereshteh Farhadi 1, Hassan Soleimanpour 5, Nasim Hajipoor 5, Reza Mohammadi 6 , Hanieh Salehi-Pourmehr 1 *