Cogan’s syndrome

A syndrome of interstitial corneal keratitis associated with sudden onset of deafness and vestibular symptoms.

Occurs most commonly in individuals in their 20s.

Deafness is a characteristically sudden in onset, whereas reduced vision and light sensitivity symptoms fluctuate.

Slit lamp examination reveals interstitial keratitis.

May be associated with episcleritis or retinal vascular occlusion.

May be associated with systemic vasculitis or inflammatory bowel disease.

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