Your LASIK surgery date is confirmed, and now the preparation checklist starts. Somewhere near the top: eye drops. But which ones? When do you start? Are they all the same? And what happens if you skip them?
Pre-operative eye drops are a surprisingly important part of the LASIK process. They’re not optional extras—they’re clinical tools that reduce infection risk, control inflammation, and optimise the surface of your eye for the laser. This guide walks you through every type of eye drop prescribed before LASIK, why each one matters, and exactly how to use them.
Key Takeaways
- Most LASIK patients are prescribed antibiotic and anti-inflammatory drops to start 1–3 days before surgery.
- Preservative-free artificial tears are often recommended for weeks beforehand to improve the ocular surface.
- Each type of drop serves a distinct clinical purpose—skipping any of them can compromise your outcome.
- Your surgeon’s specific protocol takes priority over any generic advice you find online.
Why Are Eye Drops Prescribed Before LASIK?
LASIK reshapes your cornea using a precise excimer laser. For that laser to produce its best result, the corneal surface needs to be clean, hydrated, and free from active infection or inflammation. Pre-operative eye drops achieve exactly this—they prepare your eye at a cellular level for what’s about to happen.
Think of it as prepping a wall before painting. You wouldn’t just start rolling on paint without cleaning the surface, filling cracks, and priming. Eye drops before LASIK serve the same foundational role. They reduce bacterial load, calm any low-grade inflammation, and ensure your tear film is stable enough to support smooth healing. For a broader overview of everything you should do before your procedure, our LASIK preparation guide covers the full checklist.
Antibiotic Eye Drops
Why They’re Prescribed
Even in a sterile surgical environment, the eye’s surface naturally carries bacteria. Antibiotic drops are prescribed before LASIK to dramatically reduce the bacterial population on your conjunctiva and eyelid margins, lowering the already-small risk of post-surgical infection to near zero.
Common Types
The two most widely prescribed pre-LASIK antibiotics are fluoroquinolones—specifically ofloxacin and moxifloxacin (sold under brand names like Vigamox and Moxicip). Fourth-generation fluoroquinolones like moxifloxacin are increasingly preferred because they offer broader-spectrum coverage and better corneal penetration.
Typical Dosing
Most surgeons prescribe antibiotic drops starting 1–2 days before surgery, typically four times daily. Some protocols begin the drops the evening before and dose more aggressively on the morning of surgery. Follow your surgeon’s instructions precisely—don’t start earlier or use a different brand than prescribed.
Anti-Inflammatory Eye Drops
Why They’re Prescribed
Inflammation is the body’s natural response to any tissue disruption—including LASIK. While some inflammation is normal post-operatively, pre-loading anti-inflammatory drops before surgery helps suppress the inflammatory cascade from the very start, which translates to a more comfortable recovery and clearer early vision.
NSAIDs vs. Steroids
Two categories of anti-inflammatory drops may be used before LASIK. Non-steroidal anti-inflammatory drops (NSAIDs) like ketorolac or nepafenac block prostaglandin production, reducing pain and swelling at the source. Steroid drops such as prednisolone acetate take a broader approach, suppressing multiple inflammatory pathways simultaneously. Some surgeons prescribe one, others prescribe both—it depends on their clinical protocol and your individual risk profile.
Not every clinic starts anti-inflammatory drops before surgery; many begin them immediately after. If your surgeon hasn’t prescribed them pre-operatively, that doesn’t mean something’s wrong—it simply reflects a different but equally valid protocol. To understand what medications you may need to pause before surgery, see our guide on medications to avoid before LASIK.
Artificial Tears and Lubricating Drops
Why They Matter More Than You Think
Here’s the one most patients underestimate. Artificial tears aren’t just about comfort—they directly affect the quality of your pre-operative measurements. The diagnostic scans that determine your LASIK prescription (corneal topography, wavefront analysis, and pachymetry) all depend on a stable, well-lubricated tear film. If your eyes are dry during these scans, the readings can be inaccurate, which means the laser treatment profile may not be perfectly calibrated.
What to Use
Preservative-free artificial tears are the standard recommendation. Preserved drops contain chemicals like benzalkonium chloride (BAK) that can irritate the ocular surface with repeated use—the opposite of what you want before surgery. Common preservative-free options include Refresh Plus, Systane Ultra (unit-dose vials), and Hylo-Comod.
Many surgeons recommend starting lubricating drops 2–4 weeks before your LASIK date, especially if you spend significant time on screens, wear contact lenses, or have been diagnosed with mild dry eye. The goal is to arrive on surgery day with the healthiest possible ocular surface.
When to Start: The Pre-LASIK Drop Timeline
While every surgeon’s protocol varies slightly, here’s a representative timeline that reflects common clinical practice:
- 2–4 weeks before surgery: Begin preservative-free artificial tears, 4–6 times daily. Stop wearing contact lenses (soft lenses at least 1 week before; rigid/gas-permeable lenses 2–4 weeks before).
- 1–2 days before surgery: Start antibiotic drops as prescribed—usually four times daily.
- Morning of surgery: Instil antibiotic drops as directed. Some protocols add an anti-inflammatory drop. Continue artificial tears up to your arrival time.
This timeline is a general framework. Your surgeon’s written instructions override anything here. If you’re unsure what pre-operative evaluations and preparation steps are required, ask at your consultation—a good clinic will provide a printed schedule with exact drop names and dosing times.
How to Use Pre-LASIK Eye Drops Correctly
Proper technique matters. A poorly instilled drop that rolls off your cheek doesn’t count. Here’s the correct method:
- Wash your hands thoroughly with soap and water.
- Tilt your head back slightly and pull down your lower eyelid to create a small pocket.
- Hold the bottle above your eye without touching the tip to your lashes or skin.
- Squeeze one drop into the pocket formed by the lower lid.
- Close your eye gently (don’t squeeze) and press lightly on the inner corner near your nose for 30–60 seconds. This reduces systemic absorption and keeps the medication on the eye longer.
- If you’re using multiple drops, wait at least 5 minutes between different medications to prevent one from washing out the other.
That 5-minute gap between drops is critical and often overlooked. If you instil your antibiotic and then immediately follow with artificial tears, the tears dilute the antibiotic before it has time to absorb. Space them out.
Common Mistakes to Avoid
- Using someone else’s prescription drops. Your drops are selected based on your specific eye health, allergy history, and surgical plan.
- Substituting OTC redness-relief drops for artificial tears. Products like Visine or Clear Eyes contain vasoconstrictors that temporarily whiten the eye but do nothing to hydrate it—and can actually worsen dryness with repeated use.
- Stopping contact lenses too late. Contacts reshape the cornea temporarily. If you switch to glasses just 2 days before surgery instead of the prescribed period, your corneal measurements may be inaccurate.
- Forgetting the morning-of dose. Your pre-surgery antibiotic dose on the day of the procedure is arguably the most important one. Set a phone alarm.
- Touching the dropper tip to your eye. This contaminates the bottle and can introduce bacteria—exactly what the antibiotic is trying to prevent.
Pre-LASIK Preparation at Visual Aids Centre
At Visual Aids Centre, every LASIK candidate receives a personalised pre-operative drop regimen based on their tear film assessment, ocular surface health, and the specific procedure being performed—whether that’s Contoura Vision, Femto LASIK, or SMILE Pro. The clinic provides a printed schedule with exact drop names, dosing times, and the correct sequence when multiple drops are prescribed.
Ready to start your LASIK journey? Book your pre-LASIK evaluation and get a preparation plan tailored to your eyes.
Conclusion
Eye drops before LASIK aren’t an afterthought—they’re a critical part of the surgical plan. Antibiotics reduce infection risk, anti-inflammatories pre-load your body’s healing response, and artificial tears ensure your cornea is in optimal condition for both diagnostic scanning and the procedure itself. Following your surgeon’s drop schedule precisely, using correct instillation technique, and starting preservative-free lubrication weeks in advance gives you the best possible foundation for a great LASIK outcome.
Frequently Asked Questions (FAQs)
How many days before LASIK should I start eye drops?
Antibiotic drops typically start 1–2 days before surgery. Preservative-free artificial tears are best started 2–4 weeks beforehand to optimise your tear film and corneal surface.
Can I use any artificial tears before LASIK?
Use preservative-free formulations only. Preserved drops contain chemicals that can irritate the ocular surface. Ask your surgeon for a specific brand recommendation if you’re unsure.
What happens if I forget to use my pre-LASIK drops?
Missing one dose of artificial tears is unlikely to cause problems. However, if you miss antibiotic doses, contact your surgeon—they may adjust your schedule or delay the procedure to ensure adequate prophylaxis.
Should I use eye drops on the morning of surgery?
Yes. Most protocols include antibiotic drops on the morning of LASIK. Your surgeon’s written instructions will specify the exact timing. This dose is particularly important for infection prevention.
Are pre-LASIK eye drops different from post-LASIK drops?
There’s overlap—you’ll continue antibiotics and anti-inflammatories after surgery—but the post-operative regimen is more extensive and typically includes steroid drops on a tapering schedule. Artificial tears continue long-term.
