Correct option is D
Retrolental fibroplasia, now more commonly termed Retinopathy of Prematurity (ROP), occurs in premature infants exposed to high oxygen concentrations. It involves abnormal blood vessel development in the retina, potentially leading to blindness. Controlled oxygen therapy is critical in preventing this condition.
Explanation of options: (a) ✘ Nyctalopia – Night blindness, commonly due to vitamin A deficiency. (b) ✘ Erythroblastosis fetalis – Hemolytic disease of the newborn due to Rh incompatibility. (c) ✘ Amblyopia – Lazy eye, typically due to poor visual development. (d) ✔ Retrolental fibroplasia – Caused by excess oxygen in preemies, affects retinal vessels.