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Refractive surgery has revolutionized the way we correct nearsightedness, farsightedness, and astigmatism. Thanks to precise and safe laser techniques, millions of patients now enjoy vision without glasses or contact lenses. However, doubts and misconceptions persist surrounding this medical advancement. In this article, we’ll debunk the most common myths, review evidence-based facts, and guide you in choosing the refractive procedure that best suits your needs.
1. Common myths about refractive surgery
- “Laser treatment damages the cornea and weakens it”
False. The excimer laser reshapes only the outermost layer of the cornea, preserving its structure and strength. - “In a few years, I’ll need glasses again”
The vast majority of patients maintain their visual correction over the long term. Only in cases of natural age-related changes in refraction (presbyopia) might further surgery or reading glasses be required. - “The procedure is very painful”
The procedure is performed using topical anesthetic drops; the patient feels no pain during the surgery, and any discomfort afterward is usually mild and temporary. - “I’m not a candidate if I have severe astigmatism”
Modern techniques (such as SMILE) make it possible to correct astigmatism of more than 4 diopters with high precision.
2. Evidence-based realities
- Proven safety and efficacy
– Multicenter studies show visual success rates (>20/25) exceeding 95%.
– Serious complications are rare (<1%). - Ideal candidates
– Individuals 21 years of age or older whose prescription has remained stable for at least 12 months.
– Adequate corneal thickness and a healthy ocular surface. - Relative contraindications
– Uncontrolled autoimmune diseases.
– Severe dry eye that has not responded to previous treatment.
3. Comparison of Techniques: LASIK, PRK, and SMILE
| Technical | Advantages | Limitations |
|---|---|---|
| LASIK | Very rapid visual recovery (24–48 hours). Minimal postoperative discomfort. | Requires a double corneal incision (flap). There is a slight risk of flap displacement. |
| PRK | No corneal flap. Ideal for thinner corneas. | Greater initial discomfort and slower visual recovery (3–5 days). |
| SMILE | Minimal disruption to the corneal nerve, lower risk of dry eye. Single incision (lenticule). | Latest technology; does not correct farsightedness. |
4. How to Prepare for the Procedure
- Comprehensive preoperative evaluation
– Corneal topography, pachymetry, and examination of the ocular surface.
– Tests for dry eye and tear quality. - Discontinue contact lens use
– Blandos: 1–2 semanas antes.
– Rigid: 3–4 weeks in advance. - Pre-surgery care
– Avoid applying makeup, creams, or perfumes to your eyelids.
– An escort for your outing and ride home. - Immediate postoperative period
– Lubrication with artificial tears.
– Rest your eyes and schedule regular checkups.
5. Testimonials and clinical results
“Twenty-four hours after my LASIK surgery, I was able to drive without glasses, and a week later, I resumed my exercise routine without any restrictions.” — Carlos M., 34 años
“After SMILE, my dry eye improved significantly beyond my expectations.” — Laura G., 28 años
Conclusion and Call to Action
The refractive surgery It is a safe and effective solution for saying goodbye to glasses and contact lenses. Understanding the myths and facts will allow you to make an informed decision and choose the procedure that best suits your lifestyle and eye condition.
Ready to see clearly?
Schedule your free consultation with our specialists at Enfoca and discover which technique is right for you.
