Quote:
Originally Posted by Knotlob
Some Clarification may be in order here.
Yes, sleeping in lenses overnight is NOT recommended, but especially with the modern silicone hydrogel lenses (high Dk) you would be very unlucky if you did suffer serious problems if you accidentally slept ONE night only with them in. To be clear to everyone, we are NOT talking about regular overnight wear, just one night's accidental wear. No need to panic and go to the outpatient department at the local hospital the next morning, unless there are obviously signs something is amiss.
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To clarify further, this thread talks about daily disposable lenses. I don't think the TruEye lens sold in the US is suitable for overnight wear. The Dk value isn't as high as most lenses approved for overnight wear. I'm almost 100% sure none of the other daily lenses are suitable for overnight wear.
It's not a matter of marketing or FDA filing. You don't blink when you sleep. Your eye doesn't get enough oxygen. There is a reason why a lens isn't approved for overnight wear.
The few times I fell asleep wearing my lenses, watching TV, I've had to flood my eyes with saline in order to remove the lens. My vision was blurry for a few hours after I removed the lenses.
I used to wear vial lenses. The gold standard of care (US) was the AOSept system. You cleaned your lenses by rubbing them with a few drops of a cleaning product. You rinsed them with saline. You put them in a "cup" with hydrogen peroxide. Once a week you added an enzyme tablet to the cup.
Daily lenses simplify the care. People shouldn't be stretching the wear cycle without making sure the lens care is appropriate.
I'm not disagreeing with Knotlob. Many of the silicon hydorgel lenses are either approved for extended wear or a substantially the same as a lens that's approved for extended wear. Sleeping with such a lens, by accident, may not be the end of the world. Not a bad idea to ask your idea doctor about occasionally sleeping with such a lens. Some people should never sleep with any lens in your eye. Also possible your eye doctor would prescribe a different lens if you think you'll want to sleep in with your lenses occasionally.