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Related Experiment Videos

Amniotic membrane transplantation for ocular surface reconstruction.

A Azuara-Blanco1, C T Pillai, H S Dua

  • 1Department of Ophthalmology, Queen's Medical Centre, University of Nottingham.

The British Journal of Ophthalmology
|August 6, 1999
PubMed
Summary

Amniotic membrane transplantation (AMT) effectively promotes corneal healing for persistent epithelial defects and aids in releasing adhesions. However, it was not effective for severe stromal thinning cases requiring corneal grafts.

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Area of Science:

  • Ophthalmology
  • Regenerative Medicine
  • Corneal Surgery

Background:

  • Ocular surface reconstruction is crucial for vision preservation.
  • Persistent epithelial defects and severe corneal thinning pose significant challenges in ophthalmology.

Purpose of the Study:

  • To evaluate the efficacy of amniotic membrane transplantation (AMT) for ocular surface reconstruction.
  • To assess AMT's role in managing persistent epithelial defects, severe corneal thinning, and post-surgical adhesions.

Main Methods:

  • A study included 10 patients undergoing AMT for various ocular surface conditions.
  • Patients were categorized into groups based on indications: persistent epithelial defects (Group A), severe stromal thinning with perforation risk (Group B), and post-adhesion surgery (Group C).

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  • Amniotic membrane was prepared sterilely and applied to cover the cornea and perilimbal area or the epithelial defect itself.

    • Main Results:

    • AMT successfully promoted corneal healing in 4 out of 5 patients with persistent epithelial defects, though one recurrence was noted.
    • In cases of severe stromal thinning and impending perforation, AMT was ineffective, necessitating urgent corneal grafts.
    • For symblepharon release, AMT facilitated epithelialization and prevented adhesions.

    Conclusions:

    • Amniotic membrane transplantation is effective for promoting corneal healing in persistent epithelial defects and aiding in post-surgical adhesion management.
    • AMT is not a suitable treatment for severe stromal thinning with perforation risk, where corneal grafting is required.
    • Further surgical interventions are often necessary for visual and ocular surface rehabilitation following AMT.