THE CLEAR VISION GUIDE

Contact-lens cleaning and disinfection (DISINFECTION) explained

Cleaning removes deposits; disinfection uses a defined process to reduce harmful microorganisms.

Contact lenses and care · Updated

What it means and why

Cleaning removes deposits and debris; disinfection reduces harmful microorganisms using a compatible care system. Rinsing with saline is a different step and does not provide the same disinfection. The sequence and contact time matter, not just whether the lens looks clear.

Reusable lenses need fresh solution and a suitable case according to the product instructions. Adding new liquid to used solution changes the intended conditions and is not equivalent to starting a fresh cycle.

A worked example

Teaching scenario: a lens falls on a counter and is rinsed until no dirt is visible. It has not thereby completed a disinfection cycle. Use the prescribed compatible process or a fresh replacement as appropriate; appearance does not establish microbiological safety.

What it does not tell you

Water and saliva are not lens-care substitutes. Wash and dry hands before handling, and follow case cleaning, drying and replacement instructions as part of the same care routine.

THINK IT THROUGHDoes saline rinsing count as disinfection?Open the explanation

No. Rinsing and disinfection have different purposes; follow the complete compatible care system.

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Sources & reading notes

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