Amniotic membrane transplantation for persistent corneal ulcers and perforations in acute fungal keratitis

Hung Chi Chen, Hsin Yuan Tan, Ching Hsi Hsiao, Samuel Chao Ming Huang, Ken Kuo Lin, David Hui Kang Ma*

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

52 Scopus citations

Abstract

PURPOSE: To report the therapeutic effect and complications of amniotic membrane transplantation (AMT) in acute fungal keratitis. METHODS: Diagnosis of fungal keratitis was confirmed by cultures in 23 eyes of 23 patients. The indications to perform AMT were to promote reepithelialization in non-healing ulcers or to prevent corneal perforation. Antifungal agents were administered throughout the whole course of hospitalization. Repeated cultures were performed immediately before AMT. The main outcome measurements were epithelial healing rate, necessity of therapeutic penetrating keratoplasty (TPK), and persistence of infection. RESULTS: During a mean follow-up time of 20.6 months ± 23.22 (6-65 months) AMT was performed during the active phase of the keratitis (fungal culture was still positive) in 16 patients (69.6%), and during the inactive phase (fungal culture negative) in 7 patients (30.4%). Single-layer AMT was performed in 17 patients, and double-layer AMT was performed in 6 patients with corneal perforation and anterior chamber collapse. Complete epithelialization was observed in 12 patients (75%) in the active group and in 7 patients (100%) in the inactive group. Treatment failure requiring TPK was experienced in 4 patients (25%) in the active group. Persistent fungal keratitis was noted in 2 patients (8.7%) in that group. The final visual acuity improved in 17 cases, worsened in 2 cases, and remained unchanged in 4 cases. Twelve of the 23 eyes (52.2%) in this study preserved useful vision (20/400 and better) with or without subsequent surgeries. CONCLUSION: AMT is effective in promoting epithelialization and preventing corneal perforations in acute fungal keratitis, and there is no risk of rejection. However, the risk of persistent or recurrent infection necessitates continued antifungal treatment and patient monitoring.

Original languageEnglish
Pages (from-to)564-572
Number of pages9
JournalCornea
Volume25
Issue number5
DOIs
StatePublished - 06 2006
Externally publishedYes

Keywords

  • Amniotic membrane transplantation
  • Corneal perforation
  • Fungal keratitis

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