What is Hutchinson’s triad?

Interstitial keratitis, Hutchinson’s teeth, and eighth nerve deafness. These are common findings in late congenital syphilis. Interstitial keratitis is the most common lesion in this triad. It is rare before age 8 and after age 40. Both eyes are usually affected, and the corneal clouding may be spotty or diffuse. Hutchinson’s teeth are due to deficient development of the permanent teeth buds and are characterized by conical central incisors with notching of the distal free margin. Eighth nerve deafness usually occurs after interstitial keratitis, is usually bilateral, and is often preceded by tinnitus and vertigo.

Azimi P: Syphilis. In Behrman R, Kliegman R, Jenson H, editors: Nelson textbook of pediatrics, Philadelphia, 2004, WB Saunders, pp 978–982.