Bladeless & Conventional Lasik Procedure

LASIK

Can anybody have laser surgery?

Most patients are very pleased with the results of their refractive surgery. However, like any other medical procedure, there are risks involved. That's why it is important for you to understand the limitations and possible complications of refractive surgery.

In order to asses whether your refractive error qualifies for this type of correction, it is important to obtain your

complete medical history and to have a detailed eye exam performed by the ophthalmologist.

In general:
Your refractive error should be stable.
You should be at least 18 years old.
You should have no ophthalmologic disorders (such as cataract or glaucoma) should be present.
You should be free of certain general illnesses as they may interfere with the healing process.
You should not be taking any medication which may have an effect on the healing process of the cornea.
You should not be pregnant or breastfeeding.
If you suffer from seasonal allergies, surgery should be scheduled at an allergy-free time.

Can children have laser surgery?

We do not recommend treating children's refractive errors with eye laser surgery. Because the eye does not stop growing until after the end of puberty (approximately age 20), corrections made before then will not produce stable results. Multiple corrective surgeries would become necessary and preoperative conditions would become more and more complicated. This may cause permanent damage to the cornea and, in extreme cases, require a corneal transplant.

What is the difference between the standard LASIK, and computer-guided or "customized" LASIK?

The actual surgery is the same for all 3 LASIK procedures. The difference is in the measurement of refractive errors prior to surgery.

Standard LASIK
In the standard LASIK procedure, the targeted change in the refractive power of the cornea is based on subjective refraction - a determination of the refractive error by the patient's choice of corrective lenses during the pre-operative eye examination.

Topolink LASIK or customized ablation
This LASIK procedure the targeted change is based on a combination of subjective refraction and a topographic image of the corneal surface. The goal is to optimize visual correction by eliminating corneal irregularities.

Wavefront LASIK

A Wavefront or Aberrometer-guided LASIK procedure aims to correct the combined refractive error resulting from the optical system of the eye as a whole: the cornea, the lens and the vitreous body.

Femto-LASIK:

Precision, Safety and Superior Results
Complications arising from LASIK surgery, while relatively rare, are usually associated with the oscillating blade on traditional hand-held microkeratomes. Metal blades might create incomplete or uneven edges on the corneal flap, resulting in an abnormal corneal surface and vision defects such as irregular astigmatism. In contrast, the femtosecond laser produces a flap of precise size, shape and depth.

What are the risk & complications following lasik?

Severe pain or sudden decrease in vision should not occur.
If you experience these symptoms, please contact our medical hotline immediately and you will receive strict instructions from a physician.

The following complications may occure in less than 1% of LASIK patients:

Flap complications
To ensure optimal treatment, we follow international guidelines that have been established for the LASIK procedure. They concern the thickness of the corneal flap (160 to 180 micrometer), the thickness of the remaining corneal tissue in the stromal bed (250 micrometer) and the size of the treatment area (6.0 to 6.5 millimeter).

In step one of LASIK surgery a small incision is made to create the corneal flap. In the unlikely event that the incision is irregular or incomplete, we will terminate the surgery, and the procedure can be repeated after 6 months. If, however, the tissue for the corneal flap is separated completely, laser ablation (step-two) can still take place. The area where the flap is made will have been marked prior to surgery and can therefore be placed back into its exact position without difficulty. You will then receive a therapeutic contact lens to prevent the flap from moving.

Over- or undercorrection
In some cases, an overcorrection or undercorrection amounting to approximately 10% - 20% of the desired result is possible. This is usually the result of individual variations in tissue property or in the healing process. In most cases, an enhancement procedure (follow-up surgery) can then be performed approximately 6 months after the initial surgery.

Decentralized optical zone
In rare cases, the treatment zone may become decentralized, which would also necessitate an enhancement procedure (follow-up surgery).

Epithelial ingrowth
During the initial recovery period, it is possible that cells of the epithelium (the outer layer of the cornea) could migrate between the corneal flap and the stromal bed, where they may start growing. In order to avoid any adverse effect on your vision, the flap will then be lifted, so that these cells can be removed.

Infection
In order to avoid an eye infection, you will receive antibiotic eye drops during and after the surgery. In case you experience any severe pain, or if an eye infection develops even in spite of all precautionary measures, please contact our medical hotline immediately and observe all instructions given by the physician.

Halos and Glare
After surgery, some patients have reported seeing a "halo" or glare around light sources. These effects are subject to the individual healing process and will disappear after a few weeks.

Re-LASIK
The chances of needing an enhancement procedure (follow-up surgery) to obtain the desired correction result is very low - the risk of the patient's vision being worse after surgery than it was before is statistically less than 1%.

The risk of becoming blind
after surgery is extremely low but, as with any medical procedure, we cannot provide a 100% guarantee. You can be assured that we will do everything we can to protect your health and safety. You can talk to any of our staff member about your concerns. Your surgeon will counsel you on all possible risks.

Advantages of the Femto-LASIK and traditional LASIK

Method of Choice
LASIK can be used to correct 90 % of all refractive errors. This procedure is recommended for the treatment of nearsightedness up to -10 diopter, farsightedness up to +3 diopter and astigmatism up to 3 diopter.

Innovative, Technically Precise Procedure
LASIK is an innovative, technically mature surgical procedure. The use of computer-guided equipment, such as the microkeratome, femtosecond laser and the excimer laser, guarantees predictably accurate results.

Fast and Painless Procedure
LASIK surgery is quick, usually painless and has no effect on your general health. You begin the brief recovery at home directly after the surgery is performed.

Fast Visual Recovery
A few hours after surgery, you will begin regain your vision. The rehabilitation period is very short. Within 2 days, you should be able to continue your daily routines and start to enjoy life without the need for corrective lens.

Fast Wound Healing Without Complications
LASIK surgery utilizes the body's own healing process. In the first step of LASIK surgery, a flap is created on the top surface of the cornea and is turned over like the cover of a book. After completion of the procedure on the underlying stromal bed of the cornea (second step), the flap is positioned back onto the treated area and serves as the body's own protective band-aid.

The Femto-LASIK (Laser LASIK) Procedure

The femtosecond laser eliminates the need to use a blade at all. The computer-controlled laser technology works by delivering rapid pulses of light, a quadrillionth of a second each, to a pre-programmed depth and position within the cornea.

Step 1: Preparation of the corneal flap with the femtosecond laser

The LASIK surgeon uses computer software to guide the laser beam. The surgeon can define the diameter and depth of the flap precisely.

The femtosecond laser uses a low vacuum suction ring to hold the eye. Microkeratomes require a higher vacuum suction ring.

The laser inserts a series of tiny (3-micron-diameter) bubbles within the central layer of the cornea. As the femtosecond laser moves back and forth across the eye, the bubbles are connected so they form a corneal flap.

The surgeon can follow the progress through the operating microscope and on a special monitor. A small section of tissue at one edge of the flap is left uncut, forming a hinge that allows the surgeon to fold back the flap so that the cornea can be accessed and reshaped for vision correction. After the flap is finished, the doctor gently lifts the flap.

Step 2: Vision correction with the excimer laser

Now, the excimer laser is used to reshape the cornea in order to correct the refractive error.

Finally, the corneal flap is replaced and functions as a natural band aid.