Child with mild squint. Intrauterine, bih history, developmental history till date all normal. Corneal reflex normal. All other eye parameters normal except exaggerated epicanthal fold. Diagnosis –

**Core Concept**
The question is testing the ability to identify a specific condition characterized by an exaggerated epicanthal fold in a child with a normal developmental and ocular history, except for a mild squint.

**Why the Correct Answer is Right**
The presence of an exaggerated epicanthal fold in a child with a normal developmental and ocular history, except for a mild squint, suggests the diagnosis of **Strabismus**. The epicanthal fold can mask the red reflex, making the corneal reflex appear normal, which is the case here. This is a classic finding in strabismus, where the brain suppresses vision from one eye to avoid double vision, and the epicanthal fold can cover the red reflex of the deviated eye.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is not relevant to the clinical presentation described.
**Option B:** Other eye parameters normal except for squint does not necessarily rule out this option, but it's not a direct correlation.
**Option C:** This option is not directly related to the clinical presentation of an exaggerated epicanthal fold.

**Clinical Pearl / High-Yield Fact**
In children with strabismus, the epicanthal fold can mask the red reflex, making the corneal reflex appear normal, which is a classic clinical finding.

**Correct Answer: D. Strabismus**

✓ Correct Answer: A. Pseudostrabismus