Risks of Soaking Contact Lenses in Water Overnight - Eye Health

While it may be tempting to forgo contact lens solution in favor of water, there are a number of risks associated with leaving your contacts in water overnight.

Bacteria

• Tap water contains bacteria. Overnight, this bacteria can settle on your contact lenses and lead to eye infections.

Acanthamoeba Keratitis

• Acanthamoeba keratitis is a serious eye infection caused by amoeba--one-celled creatures--that live in water. Storing your contacts in any kind of water, even if it is distilled, puts you at risk for this infection.

No Disinfectant

• Water lacks a key ingredient of contact lens solution: disinfectant. Storing your contacts in water will not clean them of bacteria and may, in fact, make bacteria multiply.

Discomfort

• After sitting in water, your contacts may change texture and stick to your eye differently, which can be uncomfortable.

Dry Eyes

• After a night sitting in water, your contacts will likely feel dry. Although it may seem that water will hydrate your contacts, the opposite is often true.