How to get rid of your glasses using laser surgery?
LASIK (Laser in Situ Keratomileusis) is the most common laser eye surgery performed to treat myopia, hyperopia, astigmastim, and presbyopia. It is the second most performed surgery in the world after cataract surgery.
The LASIK procedure combines a femtosecond laser (this step was previously performed using a microkeratome (blade) but femtosecond technology has proven its superiority and should be used in all cases nowadays) used to prepare a flap in corneal depth and an excimer laser to reshape the cornea and allow light entering the eye to be focused on the retina for clearer vision.
In order to benefit from LASIK surgery, you must have a regular cornea objectified by the topography and corneal tomography. It is best to have stable refraction (no increase in myopia of more than 0.5 diopters in a year) and this usually happens after 21 years. You should stop wearing contact lenses for 48 hours before your eye exam and before the LASIK procedure because the contact lens alters the natural shape of your cornea.
Typically, myopia up to 10 diopters, astigmatism up to 6 diopters, and hyperopia up to 6 diopters can be corrected by LASIK surgery. In some specific cases it may be possible to correct larger errors, but this should be assessed on a case-by-case basis.
You are going to have LASIK surgery - here's what to expect
A complete eye exam and a precise assessment of the refractive error (myopia, hyperopia, astigmatism, presbyopia) will be performed.
Easy to perform, painless and precise examinations will be performed to assess the shape of your cornea using specific instruments (topography, tomography, aberrometry, pachymetry, corneal hysteresis).
Based on the above, your surgeon will assess your specific need and discuss the best option for you.
On the day of surgery, anesthetic drops are instilled into your eyes to prevent pain during the procedure. This is called local anesthesia.
A specific instrument is put in place to keep the eyes open.
You will be prompted to stare at a target light while the laser is in action.
Preparation for surgery takes 15 minutes, while the surgery itself (laser time) takes a few seconds.
After the surgery, a check-up is done and you will then be allowed to go home.
You may experience a burning or itching sensation as well as temporary tearing for 3 to 6 hours. Vision is blurry until the next morning.
You will feel a major improvement in vision the next day; it is generally recommended to avoid physical activity for 2 weeks.
You will have an eye exam the day after surgery and then 3 weeks later.
Vision is considered stable 1 to 6 months after surgery.
Symptoms such as glare, halos and dry eyes tend to go away between 1 and 6 months after the operation.