Which of the following is NOT a reason for vision referral in preschool-aged children?

• A. Nystagmus
• B. 20/50 acuity at age 3
• C. Normal red reflex
• D. Retinoblastoma

Answer: (C)

In the context of vision assessment in preschool-aged children, a normal red reflex is an indicator of healthy ocular structures and does not warrant a referral for further evaluation. The red reflex test is performed to check for abnormalities like cataracts or retinoblastoma; a normal finding suggests that the eyes are likely free from significant pathologies.

In contrast, the other options listed—nystagmus, reduced visual acuity like 20/50 at age 3, and retinoblastoma—are all significant findings that typically necessitate further examination. Nystagmus may indicate underlying neurological issues or other ocular problems. A visual acuity of 20/50 in a child who is supposed to have better vision can signal an issue that needs to be addressed. Retinoblastoma is a serious condition that requires immediate attention upon suspicion. Therefore, a normal red reflex indicates no need for referral, establishing it as the correct choice for the question.