LASIK surgery has helped restore clear vision to over 20 million eyes, with 99% of patients achieving better than 20/40 vision. While LASIK has proven its effectiveness since 1995, SMILE eye surgery vs LASIK offers patients another choice, having gained FDA approval in 2016. Already, doctors have successfully performed SMILE on more than 3.5 million eyes worldwide.
The way smudgy camera lenses blur photos, our eyes can lose clarity due to refractive errors. Both SMILE and LASIK procedures correct these vision problems through precise corneal reshaping, typically taking 10-15 minutes per eye. Most patients return to their daily activities within 24-48 hours after surgery. The key difference lies in their surgical approach – SMILE uses a smaller incision, which often means fewer dry eye symptoms after surgery.
Talk with your eye doctor about which procedure might work better for you. We’ll examine how these surgeries differ in their techniques, healing processes, and results. You’ll learn about costs, who makes a good candidate, and important questions to discuss during your consultation. Like any medical procedure, choosing between SMILE and LASIK requires careful consideration of your specific vision needs and lifestyle factors.
Understanding SMILE and LASIK Basics

Our natural lens is like a camera lens – crystal clear in most of us. Both SMILE and LASIK procedures aim to restore this clarity by reshaping your cornea, though each takes a different path to improve how light reaches your retina.
What happens in SMILE surgery
SMILE (Small Incision Lenticule Extraction) uses advanced laser technology to improve your vision. During the procedure, a femtosecond laser creates a thin, lens-shaped piece of corneal tissue called a lenticule. Your eye doctor makes a tiny keyhole incision, usually no larger than 3.8 millimeters. Through this small opening, they carefully remove the lenticule, effectively reshaping your cornea.
The procedure takes about 30 seconds for the laser part alone, with the entire surgery lasting just minutes per eye. SMILE’s gentle approach uses only one laser throughout the process, and the small incision preserves most of your cornea’s outer layers.
How LASIK works
LASIK (Laser-Assisted In Situ Keratomileusis) follows a different technique. Your surgeon first creates a circular corneal flap using a femtosecond laser. After carefully lifting this flap, they use an excimer laser to precisely remove corneal tissue for vision correction.
The procedure relies on sophisticated computer programming that measures over 1,200 zones in your cornea, creating a unique surgical plan for each eye. The corneal reshaping takes less than one minute per eye, after which your surgeon gently puts the flap back in place.
Key differences at a glance
SMILE and LASIK differ primarily in their surgical approach. While SMILE uses a small 60-degree incision, LASIK creates a larger 300+ degree circular flap. We often recommend SMILE for patients with:
- Higher prescriptions
- Thin corneas
- Active lifestyles
- Tendency toward dry eyes
LASIK currently offers more treatment options, correcting nearsightedness, farsightedness, and astigmatism. SMILE, however, specifically treats myopia (nearsightedness) and astigmatism.
The procedures affect your cornea differently. SMILE’s smaller incision disturbs fewer corneal nerves. Since it doesn’t create a flap, SMILE also eliminates risks associated with flap complications that can occur with LASIK.
The laser technology differs too. SMILE needs only a femtosecond laser, while LASIK uses both femtosecond and excimer lasers. SMILE’s single-laser approach provides excellent precision, especially for higher prescriptions.
Both procedures show impressive results. Clinical studies report that 99% of SMILE patients achieve at least 20/40 vision within six months, with 88% reaching 20/20 vision. LASIK demonstrates similar success, with most patients achieving 90% of their best possible vision after surgery.
Unlike LASIK, SMILE maintains consistent effectiveness regardless of room temperature or humidity. This stability particularly benefits patients needing higher vision corrections.
Comparing Recovery and Results

After cataract surgery, you’ll have some discomfort for a few days. Similarly, both SMILE and LASIK procedures have their own healing patterns. Understanding these differences helps you plan your recovery vision correction journey.
Healing timeline differences
Your vision improves differently with each procedure. SMILE patients typically see better within 3-4 days after surgery. The small incision and flapless technique allow most people to return to their daily activities within a week.
LASIK offers quicker initial results – many patients notice clearer vision within 24-48 hours. However, your eyes need 3-6 months to reach complete stability. This longer timeline occurs because your corneal nerves need time to heal after creating the flap.
Both procedures share some recovery guidelines:
- Rest for one day after surgery
- Drive and resume normal activities within 48 hours
- Keep water away from your eyes during early healing
- Avoid heavy exercise for two weeks
SMILE shows certain advantages during recovery. The procedure affects fewer corneal nerves, reducing dry eye problems. The smaller cut also helps your cornea heal faster structurally.
Vision improvement expectations
Like any other procedure in body, results vary among patients. For LASIK:
- 98.5% report satisfaction with their outcomes
- 94% achieve 20/20 vision or better within three months
- 100% reach at least 20/40 vision by three months
SMILE shows similar success:
- 99% of patients get 20/40 vision or better within six months
- 88% achieve 20/20 vision at six months
Talk with your eye doctor about early vision differences between procedures. LASIK typically gives better initial vision improvement compared to SMILE. Some SMILE patients might have slightly blurry vision for up to three months after surgery. About 3% need additional correction within two years.
You might experience temporary effects for up to six months with either procedure:
- Seeing halos around lights
- Dry eye symptoms
- Difficulty seeing in dim light
SMILE disturbs fewer corneal nerves than LASIK, often leading to fewer dry eye problems. Without a corneal flap, SMILE also works well for people who play contact sports.
Your vision stabilizes at different rates:
- SMILE: Usually within one month
- LASIK: Takes 3-6 months
Both procedures provide lasting vision correction. The results don’t wear off over time if your prescription remains stable. The best choice depends on your lifestyle and how comfortable you feel with each recovery timeline.
Who Makes an Ideal Candidate
Talk with your eye doctor about whether surgery is right for you. Like any medical procedure, vision correction surgery requires careful evaluation of several factors to determine if you’re a suitable candidate.
Age and prescription requirements
The Food and Drug Administration (FDA) has set specific age requirements – SMILE candidates must be at least 22 years old, while LASIK becomes an option at age 18. This age difference exists because our vision typically stabilizes in our early twenties.
Your prescription stability plays a crucial role. For best results, your vision prescription should remain unchanged for at least 12 months. This stability helps ensure long-lasting improvement in your vision.
SMILE effectively corrects:
- Nearsightedness from -1.00D to -10.00D
- Astigmatism up to -3.00 diopters
LASIK treats a wider range of vision problems. However, if you have severe nearsightedness, the risks might outweigh potential benefits.
Eye health factors
The way smudgy lenses cause blurring of vision, certain eye conditions can affect your eligibility for these procedures. Both surgeries need adequate corneal thickness, though SMILE often works well for patients with thinner corneas.
Several conditions may prevent you from having either surgery:
- Keratoconus or family history of corneal disorders
- Active eye infections or inflammation Cataracts
- Uncontrolled glaucoma
- Cataracts
Concerned about dry eyes? If you already experience dry eye symptoms, LASIK might worsen this condition. SMILE generally offers a gentler option since it affects fewer corneal nerves.
Your eye doctor will perform several tests:
- Corneal topography measurements
- Tear film quality evaluation
- Pupil size examination
- Comprehensive vision testing
Lifestyle considerations
Our natural lens is like a camera lens – your daily activities can influence which procedure suits you better. SMILE shows particular benefits for active individuals. Its smaller incision and absence of a corneal flap make it ideal if you play contact sports or have a physically demanding job.
Some health conditions might affect your eligibility:
- Autoimmune disorders
- Uncontrolled diabetes
- Immunosuppressive conditions
For some people, other factors prohibit immediate surgery. Pregnancy and breastfeeding temporarily disqualify candidates from both procedures. Hormonal changes during these times can cause vision fluctuations.
Your occupation matters too. If your job involves extensive physical activity or environmental exposure, SMILE’s smaller incision might work better for you. The procedure helps preserve corneal strength and reduces complication risks.
The choice between SMILE and LASIK depends on careful evaluation by an experienced eye surgeon. They will assess:
- Current prescription stability
- Corneal measurements
- Overall eye health
- Medical history
- Lifestyle requirements
Remember, meeting basic requirements doesn’t automatically qualify you for surgery. A thorough consultation with your eye care professional remains essential for determining the best option for your specific situation.
Cost and Insurance Factors
Like any other procedure in body, vision correction surgery requires careful financial planning. Understanding the costs and payment options helps you make an informed decision about SMILE and LASIK procedures.
Average procedure costs
Both SMILE and LASIK procedures typically cost around INR 130,000 for both eyes. Several factors affect the final cost:
- Your choice of clinic and location
- Your surgeon’s experience level
- Technology and equipment used
- Your specific vision correction needs
- Additional services included
We’ve seen SMILE surgery costs decrease significantly, dropping from about INR 361,992 in 2016 to INR 199,222 in 2019. This reduction comes from more doctors offering the procedure and better access to training and equipment.
Talk with your eye doctor about costs in your area. Procedures in major cities like Delhi or Mumbai usually cost more than in smaller towns.
Insurance coverage possibilities
The Insurance Regulatory and Development Authority of India (IRDAI) allows coverage under specific conditions:
- When your refractive power is 7.5 diopters or higher
- After eye injuries affecting vision
- For refractive errors after other eye surgeries
- When glasses or contact lenses aren’t physically possible
Several insurance providers cover these procedures:
- Star Health Insurance (6,500+ hospitals)
- Manipal Cigna Health Insurance (6,000+ hospitals)
- Care Health Insurance (11,000+ hospitals)
- Bajaj Allianz Health Insurance (6,500+ hospitals)
To deal with costs until insurance approval or if insurance doesn’t cover your procedure, consider these options:
- Health Savings Accounts (HSAs)
- Use pre-tax or tax-deductible money
- Unused funds carry forward
- Possible tax advantages
- Flexible Spending Accounts (FSAs)
- Pre-tax contributions through your employer
- Use funds within the year
- Lower your taxable income
Many eye centers understand this significant investment and offer payment options:
- Interest-free payment plans
- No down payment choices
- Monthly payments
- Special discounts
Some clinics include comprehensive packages covering:
- Pre-surgery consultations
- After-surgery care
- Follow-up visits
- Required medications
Consider the long-term value of vision correction surgery. Over time, the cost of glasses, contact lenses, solutions, and regular eye exams often exceeds the one-time surgery investment. While the initial cost might seem high, you may save money in the long run.
Making Your Final Decision
Talk with your eye doctor about whether surgery is right for you. Like any other procedure in body, vision correction surgery carries both benefits and risks. A thorough consultation with an experienced eye surgeon helps ensure the best outcome for your specific situation.
Questions to ask your doctor
Before choosing either procedure, prepare questions for your consultation. You’ll need a stable prescription for at least one year. Discuss any existing conditions like cataracts, unmanaged diabetes, or severe glaucoma that might affect your surgery plans.
Your surgeon’s experience matters significantly. Ask about:
- Their history with both procedures
- How many surgeries they perform
- Their success rates
- How they handle complications when they occur
We recommend asking for clear explanations about:
- How your prescription affects procedure options
- What to expect during recovery
- Possible risks and side effects
- How to care for your eyes after surgery
For some people, other eye problems limit their options. If you have farsightedness or vision problems outside SMILE’s treatment range, LASIK might be your only choice. If you have dry eyes, SMILE might work better for you.
Consider how each procedure fits with your:
- Daily routine
- Work requirements
- Sports activities
- Overall health
Red flags to watch for
To deal with symptoms of anxiety about choosing a surgeon, watch for these warning signs:
Missing proper certification: Your surgeon should have American Board of Ophthalmology certification, showing their specialized training.
Limited surgical experience: A surgeon doing hundreds of procedures monthly typically has more expertise than one performing just a few.
Poor communication: Good surgeons and their staff explain things clearly and take time to answer your questions.
Unrealistic promises: Be cautious if a surgeon guarantees perfect results or dismisses risks. Even experienced surgeons face complications sometimes.
Rushing your decision: Quality surgeons understand you need time to think about this important choice.
Unusually low costs: While prices matter, extremely low fees might mean outdated equipment or less expertise.
Watch for these additional concerns:
- Incomplete evaluation: A comprehensive pre-operative screening should check:
- Your complete medical history
- Detailed eye health
- Corneal measurements
- Current eye conditions
- Limited options discussion: Your surgeon should explain both procedures’ benefits and limitations for your specific case.
- Unclear after-surgery care: Good providers give detailed recovery instructions and stay available for questions.
Before proceeding, evaluate:
- Your surgeon’s experience with your chosen procedure
- The clinic’s equipment quality
- Their explanation of possible complications
- Their after-surgery care plan
Both SMILE and LASIK show excellent safety records when performed by qualified doctors. However, certain eye conditions might mean laser surgery isn’t right for you.
The best choice between SMILE and LASIK depends on your corneal thickness, prescription, and lifestyle. A good surgeon helps you understand these options while focusing on your specific needs and safety.
Future of Vision Correction Surgery
Like any other procedure in body, vision correction surgery continues to advance. SMILE and LASIK procedures keep improving through new technology, offering better results for patients.
Upcoming technological advances
Our natural lens is like a camera lens – always evolving with newer technology. One promising development integrates artificial intelligence (AI) and machine learning into LASIK and SMILE procedures. These systems help analyze patient data, letting surgeons create more precise treatment plans.
Talk with your eye doctor about newer laser technologies. The VisuMax laser used in SMILE procedures is getting an upgrade. This new system aims to work faster while improving important features like positioning and eye movement tracking. These changes could help treat more vision problems with better accuracy.
LASIK technology keeps advancing too. New wavefront-guided and topography-guided systems map your eye’s unique features more precisely. These techniques help doctors address specific vision problems and subtle irregularities. As this technology improves, patients may experience better results with fewer side effects.
Eye-tracking systems, important for both procedures, are becoming more sophisticated. New developments allow for instant adjustments during surgery as your eye moves slightly. This precision helps reduce risks and improve results.
To deal with even more precise vision correction, researchers are studying nanoscale lasers. These tiny tools might help reshape the cornea with unprecedented accuracy, potentially helping patients with complex prescriptions.
Expected improvements
For some people, current vision correction options don’t work well. However, new developments might change this. AI and machine learning could help doctors better predict who will benefit most from each procedure.
Newer laser systems work faster while maintaining precision. The Teneo laser platform, recently approved for treating nearsightedness and astigmatism, uses advanced eye-tracking technology. These improvements mean shorter surgeries and potentially easier recovery.
SMILE currently treats mainly nearsightedness and astigmatism. However, research shows promise for treating farsightedness too. This could help more patients benefit from the procedure’s small-incision approach.
Scientists are developing bioengineered corneas that work with laser treatments. This might help patients with thin corneas or other limitations that currently prevent them from having laser surgery.
Another exciting development involves transplanting the removed corneal tissue (lenticule) to treat different vision problems. Early studies show promise for helping patients with farsightedness, astigmatism, and even complications from previous LASIK surgery.
We can expect better energy control in femtosecond lasers, improving how precisely they cut corneal tissue. This could mean smoother recoveries and more patients qualifying for surgery.
The trend toward smaller incisions continues. This approach typically means:
- Faster healing
- Less dry eye risk
- Better patient comfort
Virtual and augmented reality technologies might help train surgeons and guide procedures. These tools let doctors practice complex cases safely and could provide helpful information during actual surgeries.
While these advances sound promising, remember that new medical technologies need thorough testing before widespread use. Major companies like Johnson & Johnson Vision, Bausch + Lomb, and Carl Zeiss Meditec continue investing in research, suggesting a bright future for vision correction surgery.
As technology progresses, the choice between SMILE and LASIK might become less important. Instead, your eye doctor might choose from various advanced techniques to match your specific needs. This personalized approach, combined with new technology, should make vision correction safer and more effective for more patients.
Conclusion
Our natural lens is like a camera lens – both SMILE and LASIK help restore its clarity, each offering distinct benefits based on your specific needs. While LASIK gives you quicker visual improvement and treats more vision problems, SMILE’s smaller incision works particularly well if you lead an active life or have dry eyes.
Talk with your eye doctor about success rates – most patients achieve at least 20/40 vision with either procedure. These days with advent of newer technologies like AI and improved laser systems, both surgeries continue becoming more precise and personalized.
The best choice depends on several factors – your prescription, corneal thickness, daily activities, and budget. For most people, there is no rush to decide, but a thorough consultation with an experienced eye care professional helps ensure the right choice for your situation. Schedule your comprehensive evaluation at Daya Eye Center to learn which procedure suits your vision needs.
To deal with costs, consider the long-term value. While the initial investment might seem high, both procedures can save money compared to years of buying glasses and contact lenses. Most importantly, they offer something priceless – the ability to see clearly and experience life without vision limitations.
FAQs
1. How does SMILE surgery compare to LASIK in terms of corneal strength?
Studies suggest that corneas treated with SMILE are generally biomechanically stronger than those treated with LASIK. This is due to SMILE’s minimally invasive approach, which preserves more of the cornea’s structural integrity.
2. What are the main differences between SMILE and LASIK procedures?
SMILE uses a smaller incision and doesn’t create a corneal flap, while LASIK involves creating a flap. SMILE is primarily used for treating nearsightedness and astigmatism, whereas LASIK can address a wider range of vision problems. Recovery time and initial visual improvement may also differ between the two procedures.
3. Who is an ideal candidate for SMILE surgery?
Ideal candidates for SMILE are typically 22 years or older with a stable vision prescription for at least a year. It’s particularly suitable for those with higher prescriptions, thin corneas, active lifestyles, or a tendency toward dry eyes. However, eligibility is determined on a case-by-case basis by an eye care professional.
4. What are the potential side effects of SMILE surgery?
While SMILE is generally safe, some patients may experience temporary side effects such as dry eyes, glare, or halos around lights for up to six months post-surgery. There’s also a small chance of under-correction, which may require enhancement procedures. However, the risk of dry eye complications is typically lower with SMILE compared to LASIK.
5. How long does it take to recover from SMILE surgery?
Most SMILE patients experience visual enhancement within 3-4 days post-surgery and can return to regular activities within a week. Complete vision stabilization typically occurs within one month. However, it’s important to follow your doctor’s post-operative care instructions for optimal recovery.