Efficacy of an Automated Point-of-Care UVC Disinfection System for Reusable Ophthalmic Devices
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Purpose
Disinfection of multi-use ophthalmic equipment prevents cross-transmission of microbes between patients. This study evaluates the germicidal efficacy of the Saniteyes TM ultraviolet-C (UVC) high-level disinfection system for multi-use ophthalmic equipment such as eyedropper bottles, tonometer tips, and diagnostic and laser lenses.
Methods
We assessed disinfection efficacy using both carrier and simulated use tests against multiple bacterial, viral, and fungal microorganisms. Organisms were selected based on commonly accepted indicators for disinfection efficacy and/or ophthalmic relevance. Stainless steel carriers, eyedropper nozzles, applanation prisms, goniolenses, and laser lenses were inoculated before being placed within a disinfection bay of the Saniteyes TM system. Following disinfection, the log reduction in viable organisms was measured. Tests were performed according to American Society of Testing and Materials (ASTM) International Standards for high-level disinfection (HLD). All tests were performed with negative controls, soiled controls, and three replicates for efficacy studies.
Results
Carrier and simulated use tests showed reduction by more than 6-log for all bacteria and fungi, and by more than 4-log for viruses, in accordance with efficacy cutoffs for HLD.
Conclusions
The Saniteyes TM automated disinfection system offers fast and chemical-free HLD of multi-use ophthalmic devices to meet regulatory standards of the CDC, FDA, and Joint Commission.
