Frequently Asked Questions : FAQ

The laser application itself takes less than 30 seconds per eye. Including preparation time—such as applying anesthetic drops—the total time is approximately 15–20 minutes per eye.

Yes. After surgery, a transparent protective eye shield will be placed. You will be able to see, although vision will be hazy, like looking through fog, for several hours. You may return home to rest, and come back to the LASIK Center the next day for your post-operative check-up and to remove the protective shield.

Yes. You may have your eye evaluation in the morning and undergo the procedure in the afternoon, provided that your eyes are suitable for surgery. Please inform us in advance if you would like to complete both steps on the same day.

We generally do not recommend coming alone. During the evaluation, dilating eye drops will be used, causing blurred vision and light sensitivity for 4–6 hours. After surgery, your vision will also remain hazy for 5–6 hours and both eyes will be shielded. A companion should accompany you on both days. If necessary, you may come alone by taxi, but do not drive yourself.

1. Contact Lens Discontinuation To allow the cornea to return to its natural shape:
   • Soft lenses: Stop wearing for at least 5–7 days
   • Hard (RGP) lenses: Stop wearing for at least 14 days
   You may wear glasses during this period.
2. Time Needed, Please allow 3–4 hours for the complete evaluation.
3. Do not drive yourself
   Dilating eye drops may cause:
   • Dizziness
   • Light sensitivity (sunglasses are recommended)
   • Difficulty focusing on near objects
   These effects last 4–6 hours, so driving is not advised.
4. Please bring your sunglasses.

All surgical procedures carry some risk. However, with good patient cooperation, LASIK is typically smooth, quick, and safe.

Possible side effects include:
• Infection: Extremely rare, nearly 0% with modern technology
• Night glare or halos: More likely in patients with large pupils, usually improving within 3 months
• Dry eyes: Common in the early months; artificial tears may be needed for 3–6 months
Your surgeon will assess your individual risks.

Most patients achieve excellent vision without glasses or contact lenses. However, this does not necessarily mean the measured prescription will be exactly zero—small values (e.g., -0.50, -0.25, or astigmatism 0.50–0.75) are normal. Perfect zero is uncommon and not required for excellent vision. Slight residual astigmatism can even improve overall visual range.

No. Long-term contact lens use does not thin the cornea. However, it may cause dry eyes or temporary changes to the corneal surface. Stopping contact lens use helps restore corneal health and reduces dryness.

Yes. People over 40 often experience difficulty reading small print due to presbyopia. Presbyond is a laser program that enhances both near and distance vision for age-related focusing difficulty. It can be combined with PRK or Femto-LASIK and provides long-term correction, reducing dependence on reading glasses.

Contact lenses rest directly on the cornea and can alter its shape. If lenses are not discontinued long enough, the cornea may not return to its natural state, making measurements inaccurate. Accurate corneal assessment is essential for safe LASIK planning.

A lazy eye (Amblyopia) is when one eye has reduced vision compared to the other, even with glasses or contact lenses. It is usually caused by uncorrected refractive errors (nearsightedness, farsightedness, or astigmatism) before age 9, when visual development is still ongoing. After age 9, improvement becomes difficult. Lazy eye cannot be corrected by ReLEx SMILE or Femto-LASIK; these procedures do not treat amblyopia.

We use: VISUMAX Femtosecond Laser and MEL90 Excimer Laser. Both manufactured by Carl Zeiss, Germany, a global leader in precision optical technology.