Scleritis involves which part of the eye?

• A. The Cornea Only.
• B. The Sclera (White Outer Coating).
• C. The Iris.
• D. The Lens.

Answer: (B)

Scleritis means inflammation of the sclera, the tough white outer coating that surrounds and protects the eyeball. That’s why this is the best answer: the sclera is the structure involved in scleritis, not the cornea, iris, or lens.

The cornea is the clear front surface of the eye; inflammation there is called keratitis. The iris is the colored part inside the eye; inflammation there is iritis. The lens sits behind the iris and focuses light; problems there involve the lens itself (like cataracts) rather than the sclera.

Scleritis typically presents with deep, severe eye pain and redness, and it can affect vision if not treated, so recognizing that the sclera is the involved tissue is key.