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Related Experiment Videos

Comparative study of pterygium surgery.

R Iveković1, Z Mandić, D Sarić

  • 1University Department of Ophthalmology, Clinical Hospital 'Sestre milosrdnice', Zagreb, Croatia. renata.ivekovic@zg.tel.hr

Ophthalmologica. Journal International D'Ophtalmologie. International Journal of Ophthalmology. Zeitschrift Fur Augenheilkunde
|December 13, 2001
PubMed
Summary

Comparing pterygium surgical techniques, bare sclera with mitomycin C showed higher recurrence rates than limbal stem cell or amniotic membrane transplantation. Limbal stem cell and amniotic membrane grafts offer better long-term pterygium recurrence control.

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Area of Science:

  • Ophthalmology
  • Surgical Techniques
  • Regenerative Medicine

Background:

  • Pterygium, a common eye condition, can cause visual impairment.
  • Recurrence after surgical removal remains a significant clinical challenge.
  • Various surgical methods aim to minimize pterygium regrowth.

Purpose of the Study:

  • To compare the recurrence rates of pterygia after three distinct surgical interventions.
  • To evaluate the efficacy of bare sclera technique with mitomycin C, limbal stem cell transplantation, and amniotic membrane transplantation in preventing pterygium recurrence.

Main Methods:

  • A comparative study involving 51 patients with pterygium.
  • Patients were surgically treated using three methods: bare sclera with mitomycin C (21 patients), limbal stem cell transplantation (27 patients), or amniotic membrane transplantation (13 patients).

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  • Recurrence rates and time to recurrence were monitored post-surgery.

    • Main Results:

    • Pterygium recurrence was observed in 5 patients (bare sclera with mitomycin C), 2 patients (limbal stem cell transplantation), and 2 patients (amniotic membrane transplantation).
    • The mean time to recurrence was significantly shorter for the mitomycin C group (5.4 months) compared to the limbal stem cell group (10.5 months).
    • Recurrences in the amniotic membrane group occurred at 4 months post-operation.

    Conclusions:

    • Limbal stem cell transplantation and amniotic membrane transplantation demonstrate lower pterygium recurrence rates compared to the bare sclera technique with mitomycin C.
    • Conjunctival autografting alternatives like limbal stem cell and amniotic membrane transplantation appear more effective in long-term pterygium management.
    • Further research with larger cohorts is warranted to solidify these findings.