Pseudopterygium

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2021-01-18
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Pseudopterygium is the Conjunctival adhesion to cornea caused by limbal or corneal inflammation or trauma. The pseudopterygium can be easily distinguished from pterygium by bowman's probe test. Because of the lack of adherence of pseudopterygium at every point, the probe can be passed beneath it at some point.

Causes

  • Chemical burn
  • Marginal corneal ulcer
  • Cicatrizing conjunctivitis
  • Trauma
  • Surgery

Differential diagnosis

Difference between pterygium and pseudopterygium
Pterygium Pseudopterygium
Etiology Degenerative process Inflammatory process
Age Common in adults Occur in any age
Site Horizontally, most commonly nasally Anywhere
Status Progressive(commonly) or stationary Always stationary
Neck Adherent to limbus Free
Probe test Probe cannot be passed underneath Probe can be passed under neck

Treatment

Pseudopterygium can be removed by surgical excision.

See also

  • Symblepharon
  • Pterygium

Reference

  1. ^ Prabhakar, Srinivasapuram Krishnachary (October 2014). "Safety profile and complications of autologous limbal conjunctival transplantation for primary pterygium". Saudi Journal of Ophthalmology. 28 (4): 262–267. doi:10.1016/j.sjopt.2014.03.006. ISSN 1319-4534.
  2. ^ "Pseudopterygium | Columbia Ophthalmology". www.columbiaeye.org.
  3. ^ a b c John F, Salmon. "Conjunctiva". Kanski's clinical ophthalmology : a systematic approach (9th ed.). Elsevier. pp. 198–199. ISBN 978-0-7020-7711-1.
  4. ^ a b "Volume 6, Chapter 35. Pterygium". www.oculist.net.
  5. ^ a b c Khurana, AK. "Diseases of conjunctiva". Comprehensive ophthalmology (6th ed.). Jaypee Brothers. p. 88. ISBN 978-93-5152-657-5.
  6. ^ HV, Nema; Nithin, Nema. Textbook of ophthalmology (5th ed.). Jaypee Brothers. ISBN 978-81-8448-307-9.