Xwing and Zoey

Wearing the Daily lenses for more than one day is certainly bad for the contact lens companies' profits .

It is well known, by the contact lens companies, that many wearers do 'stretch out' the wearing days for lenses (probably most so for the biweekly and monthly lenses).

People who are prescribed Daily Disposables may have been prescribed them for a sound reason. e.g. they won't, or are incapable of looking after them with cleaning and disinfecting solutions (typically younger children), or they are prone to loosing lenses, travel frequently, or are prone to pollen or other environmental allergies where a daily disposable would be safer. So in this case, it would be foolish to wear the lenses more than one day.

If I was going to wear the lenses longer than the 'official' lifetime recommended by the manufacturers, I would probably do it with Monthly lenses and get the benefit of a silicone hydrogel lens. Most (but not all) daily lenses will probably tear after a couple of days and most don't offer the benefits of silicone hydrogel.

As regarding wearing Monthly lenses, etc. for say longer than a month, but only wearing them at the weekends, the manufacturers naturally say you should throw the lenses away after a month, even if worn only 4-8 times, but they consistently fail to give a bomb proof valid reason for this. So the jury is out a bit on this for Monthly lenses, but as always, you should be guided by your eye care professional re lens wear (no harm in discussing the issue with them and testing their arguments).

I don't see the point in wearing Daily Lenses for more than one day, even if they are disinfected over night. The savings are likely to be rather minimal.

knotlob