Pellucid marginal degeneration: Detection, discrimination from other corneal ectatic disorders and progression

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Title: Pellucid marginal degeneration: Detection, discrimination from other corneal ectatic disorders and progression
Authors: Martínez-Abad, Antonio | Piñero, David P.
Research Group/s: Grupo de Óptica y Percepción Visual (GOPV)
Center, Department or Service: Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía
Keywords: Pellucid marginal degeneration | Keratoconus | Keratoglobus | Terrien marginal degeneration | Mooren’s ulcer | Pachymetry | Corneal topography
Knowledge Area: Óptica
Issue Date: Aug-2019
Publisher: Elsevier
Citation: Contact Lens and Anterior Eye. 2019, 42(4): 341-349. doi:10.1016/j.clae.2018.11.010
Abstract: Pellucid marginal degeneration (PMD) is a non-inflammatory ectatic corneal disease characterized by a narrow band of corneal thinning separated from the limbus by a relatively uninvolved area 1–2 mm in width. It is a rare corneal disorder that shares many clinical characteristics with other corneal ectasias, such as keratoconus, keratoglobus or Terrien marginal degeneration. PMD usually starts later in life than keratoconus and progresses slower than keratoconus. Slit-lamp examination is very useful to distinguish PMD from other corneal ectatic disorders with inflammatory nature. Corneal topographic indices and the classical crab-claw topographic pattern cannot be used as the main tool to distinguish between PMD and keratoconus. New Scheimpflug imaging-based devices have shown the importance and usefulness of the pachymetric map for an appropriate diagnosis of PMD. In addition, biomechanical and densitometric properties have been studied as complementary techniques to help in the diagnosis of PMD.
Sponsor: The author David P Piñero has been supported by the Ministry of Economy, Industry and Competitiveness of Spain within the program Ramón y Cajal, RYC-2016-20471.
ISSN: 1367-0484 (Print) | 1476-5411 (Online)
DOI: 10.1016/j.clae.2018.11.010
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2018 British Contact Lens Association. Published by Elsevier Ltd.
Peer Review: si
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Appears in Collections:INV - GOPV - Artículos de Revistas

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