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Pseudopterygium

AI overview

Pseudopterygium is the conjunctival adhesion to cornea caused by limbal or corneal inflammation or trauma.

Key points
  • It is caused by limbal or corneal inflammation or trauma
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    Pseudopterygium is the conjunctival adhesion to cornea caused by limbal or corneal inflammation or trauma
  • It can be distinguished from pterygium by bowman's probe test
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    The pseudopterygium can be easily distinguished from pterygium by bowman's probe test
  • The probe can be passed beneath it at some point due to lack of adherence at every point
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    Because of the lack of adherence of pseudopterygium at every point, the probe can be passed beneath it at some point
  • Causes include chemical burn
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    Chemical burn
  • Causes include marginal corneal ulcer
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    Marginal corneal ulcer
  • Causes include cicatrizing conjunctivitis
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    Cicatrizing conjunctivitis
  • Causes include trauma
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    Trauma
  • Causes include surgery
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    Surgery
Diagnosis
  • Distinguished from pterygium by bowman's probe test
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    The pseudopterygium can be easily distinguished from pterygium by bowman's probe test
  • It is an inflammatory process rather than a degenerative process
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    Inflammatory process
  • It can occur at any age
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    Occur in any age
  • It can occur anywhere on the cornea
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    Anywhere
  • The neck is free rather than adherent to limbus
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    Free
  • Probe can be passed under the neck
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    Probe can be passed under neck
Treatment
  • Can be removed by surgical excision
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    Pseudopterygium can be removed by surgical excision
Prognosis

Always stationary

AI-synthesized from the Wikipedia article “Pseudopterygium”. Not medical advice. Verify source →
Pseudopterygium
Pseudopterygium in a rabbit
SpecialtyOphthalmology
CausesPost inflammatory
Diagnostic methodEye examination
Differential diagnosisPterygium
TreatmentSurgery

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.[1] Because of the lack of adherence of pseudopterygium at every point, the probe can be passed beneath it at some point.

Difference between pterygium and pseudopterygium
Pterygium Pseudopterygium
Etiology Degenerative processInflammatory process
Age Common in adults[5] Occur in any age
Site Horizontally, most commonly nasally[4] Anywhere
Status Progressive(commonly) or stationary[5] Always stationary
Neck Adherent to limbus[5] Free
Probe test Probe cannot be passed underneath Probe can be passed under neck

Pseudopterygium can be removed by surgical excision.[6]

  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. PMC 4250486. PMID 25473341.
  2. ↑ "Pseudopterygium | Columbia Ophthalmology". www.columbiaeye.org.
  3. 1 2 3 John F, Salmon (13 December 2019). "Conjunctiva". Kanski's clinical ophthalmology : a systematic approach (9th ed.). Elsevier. pp. 198–199. ISBN 978-0-7020-7711-1.
  4. 1 2 "Volume 6, Chapter 35. Pterygium". www.oculist.net.
  5. 1 2 3 Khurana, AK (31 August 2015). "Diseases of conjunctiva". Comprehensive ophthalmology (6th ed.). Jaypee Brothers. p. 88. ISBN 978-93-5152-657-5.
  6. ↑ HV, Nema; Nithin, Nema (December 2008). Textbook of ophthalmology (5th ed.). Jaypee Brothers. ISBN 978-81-8448-307-9.