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Pterygia with deep corneal changes.

V Vinod Mootha1, Michael Pingree, Jason Jaramillo

  • 1Division of Ophthalmology, University of New Mexico Health Sciences Center, Albuquerque 87131, USA. vmootha@salud.unm.edu

Cornea
|July 17, 2004
PubMed
Summary
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This study reports rare cases of deep corneal changes in elderly patients with long-standing nasal pterygia. These pterygia may lead to reduced endothelial cell density, impacting corneal health.

Area of Science:

  • Ophthalmology
  • Corneal Diseases
  • Ocular Surface Neoplasia

Background:

  • Pterygia are common growths on the eye's surface, often linked to UV exposure.
  • Deep corneal changes associated with pterygia are not well-documented.

Purpose of the Study:

  • To describe a series of patients with pterygia and previously unreported deep corneal marks.
  • To investigate the characteristics of these pterygia and associated endothelial and Descemet membrane changes.

Main Methods:

  • Reviewed clinical data of 7 patients (11 eyes) with pterygia and deep corneal changes.
  • Collected data on patient age, pterygium duration, size, and location.
  • Utilized slit-lamp photography and specular microscopy to assess corneal endothelium and pachymetry.

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Main Results:

  • Patients were elderly (mean age 75) with long-standing nasal pterygia (average 43 years).
  • Deep corneal marks were observed at the endothelium and Descemet membrane level, underlying or adjacent to the pterygium.
  • Eyes with endothelial changes showed reduced endothelial cell density (average 1580 cells/mm²).

Conclusions:

  • Long-standing nasal pterygia can rarely cause deep corneal changes in elderly individuals.
  • Endothelial cell density may be diminished in eyes affected by pterygia with these deep corneal alterations.