About Contact lenses
Problems with Contact lenses
How long to wear contacts
Contact lenses for Astigmatism
Color Contact lenses
How to Choose Color contact
Bifocal and Multifocal Contact lenses
Disposable Contacts lenses
Contact lenses for Extended Wear – Overnight Contact lenses
Contact lenses for Monovision
Gas Permeable Contact lenses
How to pick contacts
How to take care of Contact lenses
New advances in contact lenses
Most Popular Brands:
Acuvue, Biomedics, Focus, FrequencyFreshLook, O2 Optix, Proclear,PureVision, SofLens, Vertex, CibaVision, Focus Daily, Focus Monthlies, Focus Weeklies, Focus Night & Day Contacts, Bausch & Lomb, FreshLook, Impressions, DuraSoft
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How long can I wear contacts
Until 1979, everyone who wore contact lenses removed and cleaned them nightly. The introduction of "extended wear" enabled wearers to sleep in their contacts. Now, two types of lenses are classified by wearing time:
- Daily wear — must be removed nightly
- Extended wear — can be worn overnight, usually for seven days consecutively without removal
- "Continuous wear" is a type of extended wear lenses that can be worn for 30 consecutive nights.
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Disposal Intervals for Contact lenses
One problem with soft contact lenses is that proteins and lipids — which are naturally found in tears — adhere to the surface of the lenses, sometimes causing discomfort and providing hiding places for infection-causing germs.
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lenses-cleaning products help. But over time buildup still occurs, necessitating lenses replacement. Disposable lenses, first introduced in 1987, address this problem in different ways. (Note that, although "disposable" generally means single-use, this is not not always true regarding contact lenses.) Here are the options:
- Daily disposable — replaced every day
- Disposable (used for daytime wear) — replaced every two weeks
- Disposable (used for overnight wear) — replaced every week
- Continuous wear (used for 30-day wear) — replaced monthly
- Planned replacement — replaced monthly or less frequently
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