[Clinical Edge] I Dropped My Contact Lens on the Floor. Can I Rinse It and Wear It Again?

 If you drop a contact lens on the floor, do not simply rinse it with tap water and put it back in your eye.

For daily disposable contact lenses, the safest choice is to throw the lens away and use a new one.

For reusable contact lenses, the lens should be cleaned and disinfected according to the manufacturer's instructions before it is worn again. Even then, if there is any doubt about contamination or damage, replacing the lens is the safer option.

Does It Matter If the Lens Was Only on the Floor for a Second?

Yes.

Floors may contain bacteria, fungi, viruses, dust, and other microscopic contaminants that cannot be seen with the naked eye.

Because a contact lens sits directly on the cornea, even brief contact with a contaminated surface may increase the risk of eye infection.

Just because the lens looks clean does not mean it is free of harmful microorganisms.

Can I Just Rinse the Lens with Tap Water?

No.

Tap water should never be used to clean, rinse, or store contact lenses.

Although drinking tap water is generally safe, it is not sterile. It may contain microorganisms that can adhere to contact lenses.

One organism of particular concern is Acanthamoeba, a microscopic amoeba that can cause Acanthamoeba keratitis, a rare but potentially sight-threatening corneal infection.

For this reason, eye care professionals recommend keeping contact lenses away from tap water, swimming pools, hot tubs, and shower water whenever possible.

What If It's a Daily Disposable Lens?

If you wear daily disposable lenses, the answer is simple:

Throw it away and open a new lens.

Daily lenses are designed for single use only. Trying to "save" a contaminated disposable lens is usually not worth the risk.

If the lens fell onto:

• A bathroom floor
• A public restroom floor
• Outdoor pavement
• A dirty surface

it should be discarded immediately.

What If It's a Reusable Contact Lens?

Reusable lenses require proper cleaning and disinfection before being worn again.

Depending on the type of lens and the care system you use, this generally involves:

• Rubbing the lens if recommended by the manufacturer
• Rinsing with fresh contact lens solution (not water)
• Disinfecting it for the full recommended time
• Using a clean lens case and fresh solution

If the lens has:

• A scratch
• A tear
• A warped shape
• Persistent debris
• Reduced comfort after cleaning

replace it instead of wearing it again.

What If I Already Put It Back In?

If you have already reinserted the lens, remove it immediately if you develop:

• Eye pain
• Increasing redness
• Excessive tearing
• Sensitivity to light
• Blurred vision
• A persistent foreign body sensation

These symptoms could indicate a corneal abrasion or an eye infection that requires prompt evaluation by an ophthalmologist.

How Can You Reduce the Risk of Future Problems?

A few simple habits can reduce the chance of contamination:

• Wash and dry your hands before handling lenses.
• Always use fresh contact lens solution.
• Never use tap water to rinse or store lenses.
• Replace your lens case regularly.
• Keep an extra pair of lenses with you if possible.
• Replace disposable lenses instead of trying to rescue them after contamination.

Key Takeaway

A contact lens that has fallen on the floor should not be rinsed with tap water and immediately worn again.

Daily disposable lenses should be discarded and replaced. Reusable lenses require proper cleaning and disinfection with an approved contact lens solution, and any damaged or questionable lens should be replaced.

Protecting your cornea is far more important than trying to save a single contact lens.

Disclaimer: This article is for educational purposes only and is not a substitute for personalized medical advice, diagnosis, or treatment.