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LASIK stands for Laser-Assisted In Situ Keratomileusis and is a procedure that permanently changes the shape of the cornea, the clear covering of the front of the eye, using an excimer laser. The goal of LASIK surgery is to reduce a person’s dependency on glasses and contacts and correct common problems such as farsightedness, nearsightedness and astigmatism.

The experienced doctors at Kaskaloglu Eye Hospital specialize in LASIK surgery.


What happens during LASIK surgery?

After a routine eye examination, you will be examined with a corneal topographer. Eye drops are then used to anesthetize the eye. During LASIK surgery, a laser device is used to cut a flap in the cornea. A hinge is left at one end of this flap. The flap is folded back revealing the stroma, the middle section of the cornea. Pulses from a computer-controlled laser vaporize a portion of the stroma and the flap is replaced. The presence of a high speed eye-tracker on our system ensures accurate treatment even if you accidentally move your eye.

In our hospital we use the latest WaveLight EX500 Excimer Laser. The WaveLight EX500 Excimer Laser has a very fast eye tracker system that ensures accurate positioning of the laser beam on the corneal surface, thus enabling us to perform custom ablation, that is, laser treatment tailored just for you. Our surgeons also use the latest innovation in LASIK surgery, the Intralase FS. For more information on Intralase please visit


What kind of disorders can be corrected by LASIK?

LASIK can correct nearsightedness, farsightedness and astigmatism.

Who will perform my surgery at Kaskaloglu Eye Hospital?

Professor Mahmut Kaskaloglu, the hospital’s founder and one of the most respected eye surgeons in Turkey, and Dr. Bilgehan Sezgin perform all of the LASIK operations in our hospital. Prof. Kaskaloglu is a doctor with more than 34 years’ experience both practicing and teaching ophthalmology. Dr. Sezgin has worked at Kaskaloglu Eye Hospital since 2004.

How should I prepare for surgery?

The day before surgery, stop wearing any perfume, make-up, lotions or creams. You will come to the clinic at the appointed time wearing casual, comfortable clothes. The procedure takes only a half hour, but you should plan your day so that you can spend two to three hours at the clinic.

Is LASIK painful?

The procedure is relatively painless, however, some patients complain of a brief sense of pressure. A few hours after the procedure there may be temporary stinging, burning and tearing. In that case taking a painkiller should help.

When will my vision be normal after surgery?

Most patients will have very good vision the next morning. However, final healing will take a few months.

When can I go to work?

Depending on your occupation, you may start work in 1-2 days.

Will my health insurance or social security pay for the operation?

Generally speaking, they will not. However, some insurance companies may pay for special cases. You should consult your health care company.

Will my eye be covered after the operation and will I use any medication?

After the operation we will give you protective glasses to be worn that night. You will be asked you use drops for one month.

When should I remove my contact lenses?

You should remove soft lenses two weeks before surgery and hard lenses four weeks before surgery.

Will I need glasses after LASIK?

The majority of the patients can function without glasses after LASIK surgery. Patients over age 40 may need reading glasses or night driving glasses.

Can LASIK be performed on both eyes on the same session?

Yes, this is the standard procedure in our clinic.

What are the risks of LASIK?

There are a few risks associated with LASIK surgery. Some people have experienced blindness, vision changes, dry eyes, and a continued need for glasses after surgery. However, under the care of the experienced professionals at Kaskaloglu Eye Hospital and with a clear understanding of the risks and alternatives associated with LASIK surgery, you will most likely be quite happy with the result of your surgery.

Where can I get more information about LASIK?

You can find more information at the US Food and Drug Administration website here:



IntraLASIK is a form of refractive eye surgery that is similar to LASIK. It creates a corneal flap with a femtosecond laser microkeratome rather than with a mechanical microkeratome, which uses a blade. The difference between LASIK and IntraLASIK is the method by which the corneal flap is created. IntraLASIK can be used to surgically create monovision to improve your ability to see objects both near and far.

A LASIK flap created with a femtosecond laser is regarded by many ophthalmologists as an improvement over traditional LASIK because of a greater accuracy in flap size, shape, and thickness.

Kaskaloglu Eye Hospital uses the IntraLase FS Laser, which has a computer-controlled laser that creates the corneal flap for LASIK. This provides unprecedented control and the ability to customize the flap for each of our patients.

Creation of a corneal flap is
performed with a microkeratome

What is a femtosecond Laser?

A femtosecond laser is an infrared laser that can treat tissue very precisely with significantly less heat created than other laser treatments , a big advantage in eye laser surgery. Femtosecond lasers work with ultra-short impulses of light (10-15 seconds) that last only a quadrillionth of a second to create a spot as tiny as 1/100mm.

What can the femtosecond laser be used for?

The laser is used to treat patients with thinner corneas or those with more severe nearsightedness or farsightedness. It can also be used to treat patients with opacities or warped areas of the cornea.

How It Works

To make the corneal flap, the IntraLase FS60 Laser is focused into a tiny spot of energy that passes harmlessly through the outer layers of the cornea until reaching its exact focal point within the central layer of the cornea. There, the corneal flap procedure is initiated, silently and painlessly, with remarkable precision. Contrary to traditional lasers, the energy of the laser beam from a femtosecond laser doesn’t affect the tissue on the surface of the cornea, but rather reaches a specific predetermined depth inside the cornea.

You will not be able to see the laser and the procedure only lasts about 40-50 seconds per eye.

The IntraLase FS Laser can also be used to create the channels and entry cuts for placement of Intacs. Using the IntraLase FS Laser for this procedure assures that the two segments are placed at the exact same depth and removes the need for making the more surgically difficult mechanical channel.

Why we’ve invested in the IntraLase FS Laser:

IntraLASIK provides our patients with an extra margin of safety by eliminating potential complications from mechanical microkeratomes. This procedure allows us to perform LASIK on patients with thin corneas because we can make a more precise shallow flap, which allows us to correct higher levels of refractive error. It also provides both the patient and the surgeon with a higher level of confidence knowing the creation of the flap will be without complications.

The corneal flap procedure with IntraLASIK using the IntraLase FS  Laser is painless and more comfortable as there is much less pressure placed on the cornea with the laser versus the mechanical microkeratome.