Ultrasonic Cleaner is used to clean oily irises without disassembly.
Plastic basket is large enough to clean two at a time.
Solution of dish soap and distilled water is used.
Followed by rinses in distilled water and isoproply alcohol.
Assemblies are dried quickly to prevent rusting of the steel blades.
Run for no more than 1 minute as the ultrasonics will polish bright spots on the blades if overdone.