The Hudson-Stahli line is a line of iron deposition laying roughly on the border between the middle and lower thirds of the cornea.:321 It lies in the corneal epithelium. Usually it has about 0.5 mm in thickness and is 1-2 mm long. It is generally horizontal, with possible mild downward trend in the middle. It is present normally in people over the age of 50, but seems to dissipate to some degree by the age of 70.
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- Hudson-Stähli Line - University of Columbia
- Bilateral UV photographs of corneas from four normal subjects - HS lines, a figure from a study (PMID 16186341)
- Ophthalmology Myron Yanoff, Jay S. Duker Edition 3, illustrated Elsevier Health Sciences, 2008 ISBN 0323043321, ISBN 9780323043328
- Corneal topography and Schirmer testing in eyes with the Hudson-Stahli line. Rao SK, Ananth VS, Padmanabhan P. Eye. 2002 May;16(3):267-70. PMID 12032715