Question: does someone with 20/50 vision need glasses?
Answer: Usually, 20/20 vision means perfect vision while 20/30 or 20/40 are mild myopia maybe. ... Actually, your daughter with 20/50 vision is considered to have visual impairment because she can see an object clearly at 20 feet away that a person with normal vision can see clearly at 50 feet away. So she need to wear eyeglasses.