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Ophthalmic Assistant

Category - Keratometry, Tonometry, and Refractometry

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What kind of astigmatism is commonly the result of trauma, inflammation, scar tissue, or developmental anomalies affecting the cornea?

Irregular astigmatism
Asymmetrical astigmatism
Oblique astigmatism
None of the above

Explanation

Answer: A - Irregular astigmatism

Irregular astigmatism is commonly the result of trauma, inflammation, scar tissue, or developmental anomalies that affect the cornea. It is called irregular astigmatism because, in these cases, the cornea’s surface lacks any geometric form.

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