Which statement is true about anterior scleritis?

Which statement is true about anterior scleritis?

• A. The most common type of anterior scleritis is diffuse non-necrotizing.
• B. The nodular non-necrotizing type is the most severe form.
• C. Necrotizing with inflammation is not a real category.
• D. Posterior scleritis is more common than anterior.

Answer: (A)

Anterior scleritis has several forms, but the form seen most often is diffuse non-necrotizing anterior scleritis. In this pattern, inflammation involves most of the anterior sclera without tissue death, causing diffuse redness, pain, and scleral tenderness. It tends to be more common than other anterior scleritis types because it presents with a broad, uniform inflammation rather than a localized lump.

A nodular non-necrotizing form features discrete scleral nodules, which are distinct but occur less frequently than the diffuse pattern. Necrotizing anterior scleritis, with or without inflammation, is much more severe and less common; it can threaten vision and is a marker of more aggressive disease. Posterior scleritis involves the back part of the sclera and is less common than anterior scleritis, with different signs and imaging findings.

So, the statement that the most common type of anterior scleritis is diffuse non-necrotizing is correct.