Terrien's marginal degeneration

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Terrien's marginal degeneration
Anterior segment Visante optical coherence tomography scanning of right eye in this TMD individual showed that the thickness at the thinnest portion of cornea was 0.1 mm.

Terrien marginal degeneration is a noninflammatory, unilateral or asymmetrically bilateral, slowly progressive thinning of the peripheral corneal stroma.[1][2]

Sign and symptoms

The clinical presentation of Terrien's marginal degeneration is consistent with progressive blurred vision.[3]


The cause of Terrien marginal degeneration is unknown, its prevalence is roughly equal between males and females, and it usually occurs in the second or third decade of life.[2]


The diagnosis for this ocular condition is done via corneal topography ( photokeratoscopy or videokeratography)[3]


Spectacles or RGP contact lenses can be used to manage the astigmatism. when the condition worsens, surgical correction may be required.[4]


  1. Risma, Justin. "Terrien Marginal Degeneration". EyeRounds Online Atlas of Ophthalmology. University of Iowa. Archived from the original on 2021-02-23. Retrieved 2022-03-22.
  2. 2.0 2.1 "Terrien marginal degeneration". American Academy of Ophthalmology. Archived from the original on 2015-02-06. Retrieved 2022-03-22.
  3. 3.0 3.1 "Terrien's Marginal Degeneration - EyeWiki". eyewiki.aao.org. Archived from the original on 14 February 2022. Retrieved 26 August 2022.
  4. Mihlstin, Melanie Lynn; Hwang, Frank S. "Terrien's Marginal Degeneration". EyeWiki. American Academy of Ophthalmology. Archived from the original on 2022-02-14. Retrieved 2022-03-22.

External links