The use of in vivo confocal microscopy in fungal keratitis – Progress and challenges

Ingvild M. Bakken, Catherine J. Jackson, Tor P. Utheim, Edoardo Villani, Pedram Hamrah, Ahmad Kheirkhah, Esben Nielsen, Scott Hau, Neil S. Lagali

Research output: Contribution to journalReview articlepeer-review

Abstract

Fungal keratitis (FK) is a serious and sight-threatening corneal infection with global reach. The need for prompt diagnosis is paramount, as a delay in initiation of treatment could lead to irreversible vision loss. Current “gold standard” diagnostic methods, namely corneal smear and culture, have limitations due to diagnostic insensitivity and their time-consuming nature. PCR is a newer, complementary method used in the diagnosis of fungal keratitis, whose results are also sample-dependent. In vivo confocal microscopy (IVCM) is a promising complementary diagnostic method of increasing importance as it allows non-invasive real-time direct visualization of potential fungal pathogens and manifesting infection directly in the patient's cornea. In numerous articles and case reports, FK diagnosis by IVCM has been evaluated, and different features, approaches, sensitivity/specificity, and limitations have been noted. Here, we provide an up-to-date, comprehensive review of the current literature and present the authors' combined recommendations for fungal identification in IVCM images, while also looking to the future of FK assessment by IVCM using artificial intelligence methods.

Original languageEnglish (US)
Pages (from-to)103-118
Number of pages16
JournalOcular Surface
Volume24
DOIs
StatePublished - Apr 2022

Keywords

  • Artificial intelligence
  • Cornea
  • Diagnostics
  • Fungal keratitis
  • In vivo confocal microscopy

ASJC Scopus subject areas

  • Ophthalmology

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