- A dictionary of medical eponyms

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A brownish line of iron deposition across the lower third of the cornea, occurring in apparently normal eyes in the elderly, as well as in some pathological conditions in both old and young persons. It is normally present in people over the age of 50, but seems to dissipate to some degree by the age of 70. The Hudson-Stahl line is not associated with any pathology calling for clinical intervention.

We thank William Charles Caccamise Sr, MD, for information submitted.


A. C. Hudson:
A note on certain peculiar pigmentary markings of the cornea.
The Royal London Ophthalmic Hospital Reports, London, 1911, 18 part 2: 198.

J. Stähli:
Über den Fleischerschen Ring beim Keratokonus und eine neue typische Epithelpigmentation der normalen Kornea.  
Klinische Monatsblätter für Augenheilkunde, Stuttgart, 1918, 60: 721-741.

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An eponym is a word derived from the name of a person, whether real or fictional. A medical eponym is thus any word related to medicine, whose name is derived from a person.

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