The Side Effects of LASIK Surgery

LASIK surgery has transformed vision correction for millions of people. As a result, many no longer require glasses or contact lenses constantly. While the procedure has a high success rate, understanding the side effects of LASIK surgery is essential for making an informed decision.

Understand LASIK Surgery

LASIK (Laser-Assisted In Situ Keratomileusis) is a vision correction procedure that reshapes the cornea to improve how light focuses on the retina. This makes it effective for treating nearsightedness, farsightedness, and astigmatism.

During the surgery, a thin corneal flap is created and lifted to allow precise laser reshaping of the underlying tissue. With modern technology such as femtosecond lasers, advanced tracking systems, and wavefront-guided mapping, today’s procedures are safer and more accurate than ever before.

Although the procedure typically takes only 15–30 minutes, it is still a surgical intervention. Like any medical procedure, LASIK eye surgery also can have side effects. Patients should be aware of both short-term and long-term effects before proceeding.

How Common are LASIK Side Effects?

LASIK enjoys a 90–96% satisfaction rate worldwide, with most patients achieving 20/20 or 20/40 vision. However, clinical studies show that side effects are not rare.

• Dry eyes affect up to 95% of patients immediately after surgery.
• Visual disturbances like glare, halos, or starbursts occur in about 20% of patients.
• Around 35% of patients may need a touch-up procedure within 10 years as vision naturally changes over time.

The good news is that serious complications affect less than 1% of patients. Still, knowing what are the side effects of LASIK surgery helps set realistic expectations and prepare for the healing process.

Common Side Effects of LASIK Surgery

Most LASIK surgery side effects are temporary and part of the natural healing process. These include:

• Dry eyes: The most frequent issue after LASIK. Changes in the corneal surface during surgery can temporarily disrupt tear production. This can lead to burning, itching, or discomfort.
• Blurry vision: Vision may seem cloudy or fluctuate during the first few days or weeks as your eyes heal.
• Light sensitivity: Many patients experience sensitivity to bright light or sunlight. Wearing sunglasses and avoiding harsh light helps during recovery.
• Halos and glare: Some people notice halos, glare, or starbursts around lights, especially at night. This is more common if you have larger pupils.
• Soreness or mild discomfort: Common in the first 24–48 hours and typically managed with prescribed drops.

Serious Side Effects of LASIK Surgery

While rare, some serious side effects of LASIK surgery can occur. Being aware of them helps you act quickly if needed.

• Persistent dry eyes: In some cases, dryness can last beyond a year and may require special treatments like punctal plugs or medicated eye drops.
• Corneal flap complications: The corneal flap created during surgery can shift or develop wrinkles (microstriae or macrostriae). This risk is higher if you rub your eyes or experience trauma during the healing period.
• Vision regression: Over time, some patients experience slight changes in vision due to age-related factors or the strength of their original prescription.
• Corneal ectasia: A rare but serious complication (0.03–0.6% of cases) where the cornea weakens and bulges outward, sometimes requiring a strengthening procedure or in advanced cases, corneal transplant.
• Permanent loss of best-corrected visual acuity: Extremely rare, but possible if severe complications occur.

How Long Do Side Effects Usually Last?

The duration of LASIK surgery side effects varies by patient. But most follow a predictable timeline:

• First 24–48 hours: Mild soreness, light sensitivity, and blurry vision.
• First week: Vision stabilises significantly; glare and halos may still occur.
• 3–6 months: Dry eyes peak in the first three months but usually improve over time.
• 6–12 months: Most side effects, including blurry vision and halos, resolve. Persistent symptoms beyond a year are rare.

How to Manage LASIK Side Effects

Managing LASIK surgery side effects effectively speeds up recovery. Here are some key tips:

• Follow your doctor’s instructions: Use the prescribed antibiotic and anti-inflammatory eye drops as directed.
• Avoid dry eyes: Keep lubricating drops with you at all times to reduce discomfort.
• Protect your eyes: Wear sunglasses outdoors and protective goggles while sleeping to avoid accidental rubbing.
• Stay away from irritants: Avoid dusty, smoky, or windy environments during the initial weeks.
• Limit screen time: Avoid phones and computers for at least 24 hours, then follow the 20-20-20 rule (look 20 feet away for 20 seconds every 20 minutes).
• Stay hydrated and eat well: Good nutrition and hydration support faster healing.

When to Seek Medical Help?

While mild symptoms are normal, certain warning signs require prompt medical attention:

• Severe or worsening pain
• Sudden loss of vision or large visual distortions
• Persistent redness or discharge
• Flap displacement or feeling like something is in your eye

Avoiding Unnecessary Panic around LASIK

The side effects of LASIK surgery are generally mild and temporary. Understanding what are the side effects of LASIK eye surgery helps patients prepare for the recovery process and make informed choices. With modern technology, skilled surgeons, and proper post-operative care, most people enjoy long-lasting, clear vision after LASIK.

Whether you’re concerned about dry eyes, blurry vision, or potential long-term risks, go for regular check-ups and follow your doctor’s advice. Nethradhama’s experienced eye specialists can evaluate your case and recommend the best treatment for your needs.