If you’re tired of searching for your glasses each morning or topping up contact lens solution before bed, you’ve probably started looking into laser eye surgery. Within minutes, three names are coming up, again and again: LASIK, SMILE and PRK. All three are proven, safe ways to correct vision, however they differ in how they work, who they’re suited for and how long recovery takes.
LASIK vs SMILE vs TransPRK isn’t about choosing the newest or flashiest – it’s about choosing the procedure that fits your cornea, your prescription, and your lifestyle. Here’s a breakdown of each treatment so you can walk into your appointment informed and confident.
What Is LASIK Eye Surgery?
LASIK (Laser-Assisted In Situ Keratomileusis) is the most commonly performed laser vision correction procedure around the world. Our surgeons make a thin flap in the cornea, folds it back and uses an excimer laser to reshape the tissue beneath. The flap is then replaced to its original position. The entire procedure takes around 15-20 minutes for both eyes.
Pros of LASIK:
- Fast recovery – the majority of patients have clear vision within 24 hours
- Slight discomfort during and after the procedure
- Corrects short-sightedness, long-sightedness, and astigmatism
- Decades of clinical data demonstrating safety and efficacy
Cons of LASIK:
- Needs a thick enough, healthy cornea to create the flap
- Postoperative dry eye is worse than other types of laser
- Not good for contact sports or high-impact jobs, as the flap could theoretically be knocked out of place
What Is SMILE Eye Surgery?
SMILE (Small Incision Lenticule Extraction) is the newest of the three laser procedures and has gained increased popularity since it was approved. A femtosecond laser doesn’t make a flap; it makes a little disc of tissue under the surface of the cornea, called a lenticule. The surgeon then removes this lenticule through a small incision of 2-4mm, reshaping the cornea without ever lifting a flap.
Pros of SMILE:
- Minimally invasive – smaller incision than LASIK
- Reduced risk of dry eye symptoms due to less impact on corneal nerves
- The recovery is generally easy and typically achieves driving vision within 24 to 48 hours
- Better for those that want a flapless procedure
Cons of SMILE:
- Currently approved only for short-sightedness (myopia) and myopic astigmatism, not long-sightedness
- Final/Crisp vision recovery takes longer than LASIK and TransPRK
- Smile cannot be repeated. Enhancement procedures require TransPRK.
What Is TransPRK Eye Surgery?
PRK (Photorefractive Keratectomy) is the original form of laser eye surgery and underwent a more recent update where the Surgeon uses the laser to remove the surface layer of the eye (Transepithelial PRK or TransPRK). . In a single step, the surgeon uses the excimer laser to remove the epithelium and to reshape the tissue underneath. The epithelium then spontaneously regenerates in the days following.
Pros of PRK:
- There is no flap created so it is the safest choice for boxers, rugby players, military personnel and anyone in a high risk occupation
- Great for patients with thin or borderline corneas
- Great long term visual results. The equivalent of LASIK or SMILE when healed
- Lowest risk of post-operative dry eye
Cons of PRK:
- More discomfort for the first 2 to 4 days as the surface layer heals.
- Typically, driving vision takes 3 to 5 days to achieve and crisp vision 7 to 10 days
LASIK vs SMILE vs PRK: Key Differences at a Glance
| Factor | LASIK | SMILE | PRK |
| Flap created? | Yes | No | No |
| Recovery time | 24–48 hours | Driving within 24-28 hours | Driving within 3-5 days |
| Best for thin corneas | No | Sometimes | Yes |
| Best for dry eyes | Least suitable | Sometimes Suitable | Most suitable |
| Corrects long-sightedness | Yes | No | Yes |
| Suitable for contact sports | Less ideal | Good | Best |
How To Choose the Right Procedure for You
There is no one “best” laser eye surgery, only the procedure best suited to your eyes. In a pre-op consultation, your ophthalmologist will consider several factors, including:
- Corneal thickness and shape – through pachymetry and topography scans
- At this time, your prescription – SMILE only treats myopia and myopic astigmatism, so if you are hyperopic, you may be recommended for LASIK or PRK
- Dry eye history: LASIK may be contraindicated in dry eye syndrome
- Lifestyle and occupation — athletes, military personnel and people in high-impact jobs tend to favour PRK
- How fast you need to get back to work or driving
Ultimately, the only way to know if you are a good candidate is to have a thorough eye exam. Schedule a consultation with an experienced, qualified refractive surgeon before you make a final decision.
Final Thoughts
LASIK, SMILE, and PRK are all safe and proven ways to help you reduce or eliminate your dependence on glasses and contact lenses. LASIK is fast and proven with decades of data, SMILE is minimally invasive, and PRK is the gold standard for thinner corneas, dry eyes and high-risk lifestyles.
The bottom line, though, is that it’s about your own eye anatomy and your daily lifestyle. Book in for a thorough consultation with a specialist Orthoptist or ophthalmologist to discuss the best laser eye surgery suited for you.