SOFT CONTACT LENS CONTAMINATION BY BEAUVERIA BASSIANA

Carolyn Begley

Abstract

This report documents soft contact lens contamination by the fungus, Beauveria bassiana.. The contaminated Cibasoft lens was worn for one month by a 19 year old myopic female using the Opti-Free disinfecting system. The patient claimed to be compliant in her contact lens care. The contaminated lens was sent to our clinic by a regional optometrist for identification of the 'deposits.' The mold was identified as Beauveria bassiana by the Center for Disease Control. We also performed histology and scanning electron microscopy on the lens to determine the extent of growth. Fungal hyphae and colonies virtually covered the anterior surface of the lens and penetrated the posterior surface of the lens in numerous locations. Although no corneal infection occurred, the potential for development of a fungal keratitis was present since Beauveria bassiana has been associated with fungal corneal ulcers. Our report suggests that Opti-Free disinfecting system was not effective against this common mold. In addition, the practitioner's difficulty in identifying fungal colonies underlines the importance of distinguishing contamination from deposits.

Details

Year: 1992

Program Number: Poster 16

Author Affiliation: n/a

Co-Authors: Penelope Waggoner, Amy Triechel

Co-Author Affiliation: n/a

Room: Great Hall