Which statement correctly describes the development of ROP?

Which statement correctly describes the development of ROP?

• A. It Involves Delayed Retinal Vascular Growth Followed by Hypoxia
• B. It Involves Early Retinal Over-Vascularization
• C. It Is Caused by Neonatal Infections
• D. It Occurs Only in Term Infants

Answer: (A)

ROP develops through a two-phase process. First, in premature infants the retinal vessels are not fully developed at birth, and the postnatal environment—often with supplemental oxygen—creates relative hyperoxia that suppresses normal retinal vascular growth. This leads to delayed maturation of the retinal vasculature. Then, as the retina grows and its metabolic demand increases while much of it remains avascular, the tissue becomes hypoxic. This hypoxia triggers a surge of VEGF and other pro-angiogenic signals, causing abnormal, fragile neovascularization at the junction between vascularized and avascular retina. These vessels can bleed or form fibrous tissue, potentially leading to tractional retinal detachment if not managed. So the correct description centers on delayed retinal vascular growth followed by hypoxia-driven neovascularization. It’s not caused by infections and it does not occur in term infants; prematurity and oxygen fluctuations are the key factors. Also, it’s not characterized by early over-vascularization.

ROP develops through a two-phase process. First, in premature infants the retinal vessels are not fully developed at birth, and the postnatal environment—often with supplemental oxygen—creates relative hyperoxia that suppresses normal retinal vascular growth. This leads to delayed maturation of the retinal vasculature. Then, as the retina grows and its metabolic demand increases while much of it remains avascular, the tissue becomes hypoxic. This hypoxia triggers a surge of VEGF and other pro-angiogenic signals, causing abnormal, fragile neovascularization at the junction between vascularized and avascular retina. These vessels can bleed or form fibrous tissue, potentially leading to tractional retinal detachment if not managed. So the correct description centers on delayed retinal vascular growth followed by hypoxia-driven neovascularization. It’s not caused by infections and it does not occur in term infants; prematurity and oxygen fluctuations are the key factors. Also, it’s not characterized by early over-vascularization.