Contact Lens Wearing Time
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 term that’s sometimes used to describe 30 consecutive nights of lens wear for certain brands of extended wear lenses.
When To Replace Your Contact Lenses
Even with proper care, contact lenses (especially soft contacts) should be replaced frequently to prevent the build-up of lens deposits and contamination that increase the risk of eye infections.
Soft lenses have these general classifications, based on how frequently they should be discarded:
- Daily disposable lenses — Discard after a single day of wear
- Disposable lenses — Discard every two weeks, or sooner
- Frequent replacement lenses — Discard monthly or quarterly
- Traditional (reusable) lenses — Discard every six months or longer
- Gas permeable contact lenses are more resistant to lens deposits and don’t need to be discarded as frequently as soft lenses. Often, GP lenses can last a year or longer before they need to be replaced.
Very important: Always make sure you discuss and make decisions about your eye care based upon a formal appointment with your optician.
For more information and to book and eye examination please contact us:
Specs Direct | Professional Affordable Eyewear
20 McIntyre Street, Parow, Cape Town 7500
Tel: 021 939 1020
Note: We are contracted to most medical aids