- Blood vessels in the eyes normally finish developing a few weeks before birth. An infant who is born early is exposed to many different things. Medicine, oxygen, bright lights, or temperature changes might affect how an eye’s blood vessels develop.
- Low birth weight – under 1500 grams.
- How early a baby is born – A premature baby born at 28 weeks has a greater risk of having ROP than a premature baby born at 32 weeks.
- Giving the infant extra oxygen after birth.
- Premature infants are also more likely to get ROP if they have other health problems. These problems include anemia (low levels of iron in the blood), not enough vitamin E, or breathing problems.
- ROP can go away on its own as an infant grows. If it does not go away, however, it needs to be treated. Otherwise, the child can have severe vision loss, or even go blind.
- Shortly after birth, all premature babies should be checked for retinopathy of prematurity (ROP). An ophthalmologist can examine the infant’s eyes while they are in the hospital. However, ROP might not be visible until several weeks after birth. So, premature babies at risk for ROP are usually checked by an ophthalmologist at four to six weeks after birth.