After laser eye surgery: dry eye, glare and the lid care that helps recovery

Most people who have laser eye surgery recover without drama, and most of the early discomfort is expected. The difficult questions come at three weeks or three months: is this dryness normal, are these haloes going to stay, and could something else be going on? This article sets out the usual course, what needs a call to the surgeon, and the part that is easy to miss, which is that the eyelids are sometimes the reason a recovery drags.

What is the usual recovery course after laser eye surgery?

For LASIK, the US Food and Drug Administration says the eye may burn, itch or feel as if something is in it straight afterwards, and that vision is probably hazy or blurry. Light sensitivity and redness typically improve within the first week, and it may take three to six months for vision to stabilise fully.

The first check is usually within 24 to 48 hours, with regular visits for at least the first six months. Because LASIK creates a thin flap in the cornea, the clear window at the front of the eye, with no stitches holding it down, the FDA advises a protective shield at night and no rubbing of the eye until the flap has healed. It also advises waiting up to two weeks for eye make-up and one to two months before swimming or hot tubs, and the surgeon's own instructions take priority over any general list.

Different laser procedures heal differently, so this describes LASIK. Surface laser procedures and small-incision lenticule extraction have their own timetables, and the surgeon who performed the operation is the right source for them.

Why are my eyes dry after laser eye surgery, and how long does it last?

Dry eye is the commonest side effect of LASIK. AAO EyeWiki reports dry eye in 60 to 70 per cent of eyes in the early postoperative period, and explains why: making the flap cuts corneal nerves, which weakens the reflex that triggers tears and changes how often and how fully you blink.

The word "dry" can mislead, because the eye often feels gritty, tired or watery, and vision may fluctuate between blinks. The American Academy of Ophthalmology lists refractive surgery itself as a cause of dry eye, alongside long periods of reading or screen use that reduce blinking.

How long it lasts is where the evidence is thinner than the brochures suggest. In the FDA's patient-reported outcomes study, called PROWL, the proportion of people with normal dry eye scores was lower before surgery than afterwards, but about 28 per cent of those who started with normal scores had mild, moderate or severe dry eye symptoms at three months. In the military group (PROWL-1), 66 per cent had normal scores at three months and 73 per cent at six. I could not verify a single reliable figure for how many weeks dryness lasts, so I will not give one. Persistent dryness at several months is a reason to be reviewed, not to wait quietly.

The usual first step is lubrication. Academy guidance is to use artificial tears as often as symptoms need, and to choose preservative-free ones once use passes about six times a day. The tear film and the oil glands in the lids matter here, which is why they are assessed before surgery, as I describe in my article on dry eye and meibomian glands before laser eye surgery.

Are glare and haloes after laser eye surgery normal?

They are common early on, and they usually settle over three to six months, but not always. In PROWL, 43 per cent of one group and 46 per cent of the other reported a new visual symptom (double images, glare, haloes or starbursts) three months after LASIK. Many people who had such symptoms before surgery found them reduced, so the picture is mixed.

AAO EyeWiki lists the factors linked to night-time symptoms: a pupil that opens wide in the dark relative to the treated zone, higher myopic corrections, an off-centre treatment and a small treated zone. Management is individual and sits with the surgeon. The PROWL authors, who work at the FDA, conclude that people need adequate counselling about new symptoms after LASIK, and I agree with that.

Dry surface and glare are linked in everyday experience, since an uneven tear film scatters light. I would not claim that tidying the tears cures haloes, but it removes one cause worth removing.

Which symptoms after laser eye surgery need a call to the surgeon?

Severe pain, reduced vision, increasing redness, or any symptom that is getting worse rather than better should be reported promptly, and the FDA says the same about severe pain and worsening symptoms. Do not wait for the next routine appointment, and do not treat it with leftover drops.

The reasons are specific. AAO EyeWiki describes infection after LASIK as typically appearing on day three or four or later, usually in one eye, with prominent pain and redness. Another early problem is a sterile inflammation under the flap in the first few days. A displaced flap is rare, about 0.012 per cent of eyes over 12 months in one large analysis, and it is more likely after eye rubbing or trauma, so a sudden blur after a knock to the eye is urgent.

Pain out of proportion to what the examination shows can also reflect corneal nerve pain, which EyeWiki distinguishes from ordinary dry eye. The practical rule is simple: expected discomfort fades, and anything that gets worse, appears suddenly or reduces vision does not belong in the wait-and-see group.

What lid care and blink habits help recovery?

Gentle, surgeon-approved habits help most. Blink fully and often, use lubricating drops as directed, keep eye make-up off for the period advised, wear the night shield and avoid touching the eye. At a screen, blinking falls from about 15 times a minute to 5 to 7, according to the American Academy of Ophthalmology, so deliberate blinks and regular breaks matter more than usual.

Lid hygiene is useful where the lid margin is inflamed. The AAO lists warm compresses for blepharitis, which is inflammation of the lid edge, and the FDA notes that debris along the lashes raises infection risk around surgery. I would still ask the surgeon before pressing a warm cloth on the lids in the first weeks, because the concern is pressure on a healing flap, not the warmth. Where lid margin disease is the issue, my article on blepharitis and sore, crusty lids covers the care in full.

I could not find trial evidence that any particular lid routine speeds recovery after laser surgery. These are sensible habits that follow from how the tear film works, not proven protocols, and the surgeon's instructions come first.

When is an eyelid problem behind symptoms that will not settle?

When the eye is healthy but the lids are not doing their job. Two situations stand out: a lid that does not close fully, and a lid that has drooped since the operation. Both are eyelid problems rather than laser problems, which is why an oculoplastic assessment can help.

Incomplete closure, called lagophthalmos, leaves part of the cornea exposed, especially during sleep, so the eye is dry on waking whatever drops are used. My article on lagophthalmos explains how it is recognised and treated.

Ptosis after eye surgery is documented. AAO EyeWiki notes that transient or persistent ptosis may follow LASIK, attributed to speculum trauma to the levator aponeurosis (the tendon that lifts the lid), pressure from the suction ring, or postoperative swelling. Most cases resolve by themselves within three to six months, and persistent ones may need a levator advancement. The same mechanism is described for other operations in my article on a droopy eyelid after cataract or other eye surgery. A lid that has not recovered by six months, or that is getting lower, deserves an assessment, because the lid and the dry surface can then be looked at together.

Eyelid surgery itself can also dry the surface, a point covered in dry eye after eyelid surgery. For the checks worth completing before any laser, read what an oculoplastic surgeon checks before LASIK, SMILE or lens surgery. The wider set of pieces sits under refractive surgery and your eyelids, and the general question of why eyes feel and look tired is in what makes eyes look tired.