Blur after removal is common
Taking your lenses out at night and finding the world fuzzy, even through your glasses, is one of the most frequent things wearers ask about. Many describe glasses that feel “off” for a while after removal, then come back to what they were. Some notice it more in the first months, and many say it bothers them less as time goes on.
There are a few reasons this can happen:
- The contrast effect. A scleral lens can give much sharper vision than glasses, especially on an irregular cornea. After hours of that, your usual glasses can feel worse than they really are.
- Small, temporary changes in the cornea. The cornea can swell slightly while a lens is on, and its curvature can shift a little. Studies find these changes are small in most eyes and mostly reverse after the lens comes out. Eyes with a corneal transplant or a weak inner corneal layer can swell more. Our page on whether scleral lenses change the shape of your cornea covers the research.
- An end-of-day eye. Dryness, a long day on screens, and tired eyes can all add blur in the evening, lens or no lens.
If the blur after removal seems to be getting longer or stronger, that’s worth reporting. Your fitter can check for corneal swelling, which is one of the things they look for at follow-up visits. See vision changes during the day for how fitters investigate it.
Why glasses can stop working as well
“My glasses don’t work anymore” comes up often, and it usually has one of these explanations:
- Glasses never fully corrected your eye. An irregular cornea, from keratoconus, a transplant, or surgery, bends light unevenly. Glasses can’t fix that the way a scleral lens can. Many wearers say they didn’t notice how limited their glasses were until they had lenses to compare.
- The glasses prescription is out of date. Glasses prescribed during the fitting may need updating once you’ve settled into your lenses, and the eye itself can change over time.
- The condition has changed. Keratoconus and other corneal conditions can change over the years, with or without lenses. So can other parts of the eye.
None of these mean the lens is damaging your eye. But a real, lasting change in your vision without lenses is a reason for an exam rather than a guess.
Backup glasses: how good can they be?
The FDA advises every contact lens wearer to keep a backup pair of glasses with a current prescription.[1] For scleral lens wearers that advice still holds, even when the glasses are far from perfect. You’ll need them on days your eye is irritated, when a lens breaks, or after an eye procedure.
Wearers describe a range of experiences. Some have glasses that work well enough for most things. Others, with more irregular corneas, say their glasses are only good for moving around the house in the evening. A few say no glasses help them at all.
Things wearers find useful:
- Ask for the sharpest glasses your eye doctor can prescribe, and say you’ll use them as a backup and after removal. Some wearers keep separate pairs: one to wear over their lenses for reading, and one for when the lenses are out.
- Keep your previous pair of lenses, if your fitter agrees, as a backup in case a new lens breaks or doesn’t work out. Ask how to store them.
- Plan lens-free days. If your eye doctor ever asks you to stop wearing lenses for a while, plan transport and work in advance, since your vision may be limited.
Glasses worn over scleral lenses are a different pair, for a different job. See can you wear glasses over scleral lenses?
What wearers say
Experiences are mixed. Many long-term wearers say evening blur is just part of the routine and fades once the lenses are out for a while. Some say their vision without lenses returned to where it was after a few lens-free days. Others feel their glasses vision has slowly worsened over the years, and found the cause was a change in their eye rather than the lenses. A common thread: the people who were least worried had talked it through with their eye doctor.
What to ask your fitter
- Is the blur I get after removal within what you’d expect for my eye?
- Do you see any signs of corneal swelling at my visits?
- Can my glasses prescription be updated, and when should I be measured?
- Should I keep my old lenses as a backup, and how should I store them?
- What should I do on days I can’t wear my lenses?
Common questions
How long should blur last after I take my lenses out?
It varies from person to person, and wearers describe anything from a short while to the rest of the evening. What matters more is the pattern: blur that clears by the next morning is different from blur that is still there the next day. If it doesn't clear, or it's getting worse over weeks, tell your fitter.
My glasses don't work anymore since I started sclerals. Should I get new ones?
Ask your eye doctor whether an updated glasses prescription would help. Some wearers find a new pair helps a lot; others, especially with an irregular cornea, find no glasses come close to their lenses. Ask for the glasses exam at a time of day your eye doctor suggests, since blur right after removal can throw off the measurement.
Is it a problem if I wear my lenses every waking hour so I don't have to deal with the blur?
Stay within the wearing time your fitter gave you. Wearing longer to avoid evening blur isn't a fix, and lenses must come out before any sleep. If the hours without lenses are hard to manage, raise it with your fitter so you can plan around it together.
Could something other than the lenses be making my vision worse?
Yes. The condition that led you to scleral lenses can change, and other eye changes, such as a cataract, can blur vision over time. Your eye doctor can tell these apart with an exam.