LASIK is not typically painful after the procedure, but most people experience a few hours of burning, stinging, or a gritty sensation as the numbing drops wear off. This discomfort is short-lived. By the next morning, the acute sensations have usually resolved, and most people can see well enough to drive themselves to their follow-up appointment.
What the First Few Hours Feel Like
During surgery, numbing eye drops block pain signals entirely, so you won’t feel pain on the operating table. The most commonly used drops wear off relatively quickly after the procedure ends, and that’s when sensations kick in. Your eyes may burn, itch, sting, or feel like something is stuck in them. They’ll probably water quite a bit. This is the peak of post-LASIK discomfort, and it happens within the first two to four hours.
Surgeons almost universally recommend taking a nap right after getting home. Sleeping for an hour or two serves a dual purpose: it lets early healing begin while your eyes are closed, and you simply skip the window when discomfort is at its worst. A mild over-the-counter pain reliever can help if you’re uncomfortable, but many people find the nap alone is enough.
The First 24 Hours and Beyond
By the time you wake up from that post-surgery nap, the burning and stinging have typically faded significantly. Most people report seeing clearly within 24 hours. Your eyes may still feel slightly dry or scratchy for the next few days, but the acute soreness from the first hours doesn’t usually return.
Light sensitivity is common in the first day or two. Bright lights, screens, and sunlight can feel uncomfortable or slightly painful. This is partly because the procedure temporarily disrupts nerve fibers in the cornea, making your eyes react differently to stimuli they’d normally handle fine. Wearing sunglasses helps, and this sensitivity resolves on its own for most people within a week.
Why Your Eyes Feel Different for Weeks
To create the LASIK flap, the surgeon cuts through a dense network of nerve fibers in the cornea. These nerves are responsible for sensation, tear production signaling, and reflexive blinking. The cut severs nearly all the nerves in the treatment area except those at the flap’s hinge. This is why your cornea actually becomes less sensitive in the days after surgery, not more. Corneal sensitivity drops to its lowest point one to two weeks after the procedure.
From there, the nerves slowly regenerate. Short branches begin regrowing within the first few weeks, becoming longer and more organized by three months. Corneal sensitivity recovers to about half its pre-surgery level by one month and reaches roughly 77% by six months. Most people regain near-normal sensation by the one-year mark, though full nerve density can take several years to rebuild. At five years out, studies using microscopic imaging show nerve density recovers to about 79% of its original level.
This nerve disruption is also the primary reason LASIK causes temporary dry eye. With fewer functioning nerves, your cornea can’t signal the brain to produce tears as effectively, so your eyes dry out more easily. For most people, this improves steadily over months as the nerves regrow.
Dry Eye: The Most Common Lingering Issue
Dry eye is the side effect most likely to cause ongoing discomfort after LASIK. In the first few weeks, nearly everyone experiences some degree of dryness. Preservative-free artificial tears are the standard remedy and can be used as often as needed.
For most people, dry eye symptoms improve substantially within three to six months. However, a long-term study of patients at least four years after LASIK found that up to 75% still reported some degree of chronic dry eye symptoms. That number sounds alarming, but it’s important to note that “symptoms” range from occasional mild dryness to persistent discomfort. The large-scale PROWL studies conducted by the FDA found that more than 95% of LASIK patients were satisfied with their vision, and less than 1% reported significant difficulty performing daily activities due to any single symptom. So while many people notice their eyes are drier than before surgery, for the vast majority it’s a manageable inconvenience rather than a source of real pain.
When Discomfort Isn’t Normal
Normal post-LASIK discomfort follows a clear pattern: it peaks in the first few hours, fades overnight, and transitions into mild dryness or light sensitivity that gradually improves. Pain that gets worse after the first day rather than better, or new sharp pain that develops days or weeks later, doesn’t fit this pattern.
Increasing pain, significant redness, worsening vision, or discharge from the eye could signal a complication like infection or inflammation beneath the flap. These are uncommon but serious, and they need prompt attention from your surgeon. The key distinction is trajectory: normal recovery feels better each day, while a complication feels worse.
What Helps With Post-LASIK Discomfort
Your surgeon will prescribe anti-inflammatory eye drops and possibly antibiotic drops to use for the first week or so. These reduce swelling and lower the risk of infection, and they also help with comfort. Beyond those prescribed drops, the practical toolkit is straightforward:
- Artificial tears: Preservative-free versions can be used liberally for weeks or months to address dryness and the scratchy feeling that comes with it.
- Sleep: Napping immediately after surgery is the single most effective way to skip the worst of the acute discomfort.
- Sunglasses: Wearing them outdoors and even indoors if lights bother you helps manage light sensitivity in the first few days.
- Over-the-counter pain relievers: A standard dose can take the edge off in the first few hours if needed, though most people don’t require anything beyond the first day.
A small number of patients develop a condition where corneal nerves heal abnormally, creating persistent pain or hypersensitivity to things like wind, air conditioning, or bright light. This is a form of nerve-related pain rather than ongoing tissue damage, and it’s uncommon. For the vast majority of people, the discomfort story of LASIK is a brief chapter: a few rough hours, a few dry weeks, and steady improvement from there.