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Related Experiment Videos

An eye banking program for selecting donor corneas for surgical distribution

E J Farge1, W G Cox, M M Khan

  • 1Lions Eye Bank of Texas, Houston 77030, USA.

Cornea
|November 1, 1995
PubMed
Summary

Fewer donated corneas are available due to increased exclusions based on medical criteria and universal contraindications. While serological exclusions decreased, overall regulations may hinder corneal donation efforts.

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Area of Science:

  • Ophthalmology
  • Transplantation Science
  • Public Health Policy

Background:

  • Declining availability of donated corneas for surgical transplantation.
  • Need to understand evolving reasons for corneal tissue exclusion.

Purpose of the Study:

  • To analyze trends in corneal tissue exclusion reasons from 1991-1994.
  • To identify factors contributing to reduced corneal availability for surgery.

Main Methods:

  • Utilized an exclusion algorithm to categorize reasons for corneal tissue non-suitability.
  • Analyzed data across four categories: universal contraindications (UC), national/local medical criteria (NLMC), serology, and morphology.
  • Compared exclusion rates between 1991-1992 and 1993-1994.

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Main Results:

  • Exclusions due to UC and NLMC significantly increased in 1993-1994 compared to 1991-1992 (p < 0.001).
  • Corneal exclusions for serological reasons decreased significantly from 1991 to 1994 (p < 0.001).
  • Exclusions based on morphology remained constant; NLMC impacted both older and younger donors, with younger tissues having higher surgical utilization rates.

Conclusions:

  • Increased regulatory scrutiny and medical criteria have led to higher corneal exclusion rates.
  • Despite gains in donation laws, heightened regulations may be counteracting efforts to increase corneal availability.
  • Understanding exclusion trends is crucial for optimizing corneal donation and transplantation programs.