Infants eligible for ROP screening are generally born at or before which gestational age?

• A. 28 weeks
• B. 30 weeks
• C. 32 weeks
• D. 34 weeks

Answer: (B)

Retinopathy of prematurity risk rises as gestational age decreases because the retinal vessels are not yet fully developed in the most premature infants. The usual threshold for screening is infants born at or before about thirty weeks of gestation, since those very premature infants have the highest risk of developing vision-threatening disease. While some guidelines also consider very low birth weight or extend screening to a slightly later gestational age in certain settings, the thirty-week cutoff is the standard reference for eligibility.