pterygium (web eye)

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Introduction

A white triangular patch* of hypertrophied bulbar subconjunctival tissue, extending from the medial canthus to the border of the cornea or further.

The apex of the triangle points towards the pupil.

* May not appear white.

Etiology

Clinical manifestations

Complications

Differential diagnosis

Management

More general terms

Additional terms

References

  1. Stedman's Medical Dictionary 26th ed, Williams & Wilkins, Baltimore, 1995
  2. Pterygium http://www.nei.nih.gov/health/cornealdisease/index.asp#l
  3. Wikipedia: Pterygium http://en.wikipedia.org/wiki/Pterygium_(conjunctiva)
  4. 4.0 4.1 4.2 NEJM Knowledge+ Ophthalmology
    Shahraki T, Arabi A, Feizi S. Pterygium: an update on pathophysiology, clinical features, and management. Ther Adv Ophthalmol. 2021 May 31;13:25158414211020152. PMID: https://www.ncbi.nlm.nih.gov/pubmed/34104871 PMCID: PMC8170279 Free PMC article. Review.
    Chu WK, Choi HL, Bhat AK, Jhanji V. Pterygium: new insights. Eye (Lond). 2020 Jun;34(6):1047-1050. PMID: https://www.ncbi.nlm.nih.gov/pubmed/32029918 PMCID: PMC7413326 Free PMC article. Review.