**Question:** Homonymous hemianopia is seen in all except -

A. Complete transverse lesions
B. Complete vertical lesions
C. Incomplete lesions
D. Multiple lesions

**Core Concept:**
Homonymous hemianopia is a type of visual field defect in which both sides of the visual field, corresponding to both halves of the visual cortex, are affected. It can result from various lesions involving the visual pathways, including optic nerves, chiasm, tracts, radiations, and cortex.

**Why the Correct Answer is Right:**
In this case, the correct answer refers to a specific type of homonymous hemianopia, which is seen in instances where the lesion is **completely transverse** across the visual pathway. This type of lesion typically affects both halves of the visual field, leading to a visual field defect.

**Why Each Wrong Option is Incorrect:**

A. **Complete vertical lesions**: This refers to lesions that extend vertically along the visual pathway, affecting only one half of the visual field. This results in a homonymous hemianopsia, not hemianopia, as only one half of the visual field is affected.

B. **Incomplete lesions**: These involve only a part of the visual pathway and cannot result in a homonymous hemianopia, as they do not affect the entire pathway.

C. **Multiple lesions**: While multiple lesions can contribute to homonymous hemianopia, the question specifically asks for instances where homonymous hemianopia is not seen. Incomplete lesions or multiple lesions would not result in a complete hemianopia affecting both halves of the visual field.

**Clinical Pearl:**
It is essential to consider the type and location of the lesion when diagnosing visual field defects, as different types of lesions can lead to different visual field deficits. A complete transverse lesion affecting both halves of the visual pathway will result in homonymous hemianopia, while incomplete or multiple lesions will lead to different visual field deficits.