**Question:** Shedding of red tears seen in

A. Episcleritis
B. Keratitis
C. Scleritis
D. Corneitis

**Correct Answer:** C. Scleritis

**Core Concept:**

Scleritis is an inflammatory condition affecting the sclera, the white part of the eye. It is characterized by redness, pain, and increased sensitivity to light. The sclera contains a dense network of blood vessels, and when inflammation occurs, these vessels become more visible, resulting in the shedding of red tears.

**Why the Correct Answer is Right:**

Scleritis is a distinct clinical entity from the other options provided:

1. Episcleritis: Episcleritis is limited to the episclera, the superficial part of the sclera. In contrast, scleritis involves the deeper layers of the sclera, which explains why it does not lead to visible blood vessel dilation and red tear production.
2. Keratitis: Keratitis refers to inflammation of the cornea, not the sclera. Therefore, it does not result in red tear production due to scleral vessel dilation.
3. Corneitis: Similar to keratitis, corneitis is inflammation of the cornea, not the sclera, so it does not cause red tear production due to scleral vessel dilation.

**Why Each Wrong Option is Incorrect:**

A. Episcleritis: Episcleritis affects the episclera, not the sclera, which is why it does not result in red tear production due to scleral vessel dilation.
B. Keratitis and corneitis: Both these conditions affect the cornea, not the sclera. As a result, they do not lead to red tear production due to scleral vessel dilation.

**Clinical Pearl**: Scleritis is a potentially sight-threatening condition that requires prompt medical attention to prevent complications such as corneal ulceration, secondary glaucoma, and optic neuropathy. Early recognition and management of scleritis can prevent these complications and improve visual outcomes.