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Related Experiment Videos

Wedge resection for postkeratoplasty astigmatism

J Frucht-Pery1

  • 1Department of Ophthalmology, Hadassah, University Hospital, Jerusalem, Israel.

Ophthalmic Surgery
|August 1, 1993
PubMed
Summary

This study shows that a modified wedge resection effectively reduces high astigmatism after keratoplasty (corneal transplant). The procedure significantly improved visual acuity in nearly half of the patients studied.

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Area of Science:

  • Ophthalmology
  • Corneal Surgery
  • Refractive Error Management

Background:

  • High astigmatism is a common complication following keratoplasty.
  • Managing postkeratoplasty astigmatism is crucial for visual rehabilitation.

Purpose of the Study:

  • To evaluate the efficacy of a modified wedge resection technique for correcting high astigmatism after corneal transplantation.
  • To assess the impact of this surgical approach on visual acuity and refractive outcomes.

Main Methods:

  • A modified wedge resection was performed on twelve patients post-keratoplasty.
  • Eleven patients were followed for 6 to 24 months post-surgery.
  • Wedge resection was performed on the donor cornea, with wound closure using Mersilene sutures.

Main Results:

  • Preoperative astigmatism averaged 15.40 D, reduced to an average of 4.36 D postoperatively.
  • Five patients (45%) achieved a corrected visual acuity of 20/40 or better.
  • Complications included residual/irregular astigmatism and scarring from Mersilene sutures.

Conclusions:

  • Modified wedge resection is an effective surgical option for managing significant postkeratoplasty astigmatism.
  • While effective, careful consideration of suture material is needed to minimize complications like scarring.

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