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THE STRONG DESIRE TO SEE CLEARLY

THE THREE OPTIONS OF LASER VISION CORRECTION.

REFRACTIVE SURGERY IS A WIDELY PERFORMED TREATMENT APPROACH FOR CORRECTING VARIOUS VISION IMPAIRMENTS.
The field has seen many advancements within a relatively brief span of only 30 years, as reflected by the three options of Laser Vision Corrections available today: PRK, LASIK and SMILE.

UNDERSTANDING PRK, LASIK AND SMILE PRO

MODERN METHODS TO CORRECT COMMON VISION DISORDERS.

Good vision is something everyone wants, but not everyone has it naturally. Eye conditions such as nearsightedness, farsightedness, and astigmatism, or so-called refractive errors, are very common.

Eyeglasses and contact lenses offer a suitable solution. However, some people consider them inconvenient. They just want to see clearly without visual aids.
Today, most refractive errors can be effectively treated with modern Laser Vision Correction methods. In particular, three procedures are widely available today: PRK, LASIK and SMILE.

Whether Laser Vision Correction is right for you depends on various factors. Your eye doctor can assist you in determining the best option for your vision needs and lifestyle preferences.

PRK

Surface ablation surgery.

Treatment steps
• The outer layer of the cornea (epithelium) is
dissolved with alcohol.
• The layer is removed or moved to the side.
• The vision is corrected through tissue ablation
with an excimer laser.
• A protective contact lens is placed over the eye
until the epithelium grows back within a few days.
Characteristics
• More suitable for patients with thin corneas.
• Least expensive Laser Vision Correction
procedure.

LASIK

Flap surgery.

Treatment steps
• A flap, a hinged piece of tissue, is created with a
mecha nical device (LASIK) or highly precise
femtosecond laser (Femto-LASIK).
• The flap is carefully folded back to treat the
corneal tissue.
• The vision is corrected through tissue ablation
with an excimer laser.
• The flap is returned to its original position,
protecting the eye much like a natural bandage.
Characteristics
• Treatment standard for over 20 years.
• Normally quick visual recovery.
• Performed by many clinics and doctors.

SMIL PRO

Minimally invasive surgery.

Treatment steps
• A small piece of corneal tissue (lenticule) and a
small incision are created inside the cornea.
• The lenticule is removed through the small
incision.
• By removing the lenticule, the vision correction
is achieved.
Characteristics
• Advanced Laser Vision Correction.
• Minimally invasive and gentle with only a small
incision.
• Supports a comfortable and stress-free
patient experience.

PRESBYOND®

Laser-blended Blended offers the opportunity to achieve freedom from glasses.

It combines the simplicity and accuracy of corneal refractive surgery with the benefits of an increased depth of field.

How does PRESBYOND work?

■ Your dominant eye is corrected for distance vision and your non-dominant eye is corrected for near vision.
■ In the intermediate zone, PRESBYOND creates a customized fusion of the two images: the Blend Zone.
■ Thanks to the Blend Zone, it is easier for the brain to merge the images of the two eyes for normal 3D vision.
■ Since PRESBYOND is an advanced form of LASIK, you can benefi t from this well-established procedure with proven long term results.

Further interesting facts 

Answers to frequently asked questions.

If you are considering SMILE surgery, you probably have many questions. Some of the most frequent ones are addressed here. This information is not intended to replace consultation with your eye doctor.
Who is eligible for SMILE?

SMILE is used to correct nearsightedness, astigmatism, or both. As with other Laser Vision Correction methods, you will first need to undergo a detailed eye examination to determine whether you are a suitable candidate. Many factors play a role, including the nature and degree of the refractive error, the curvature and thickness of the cornea. Your profession and hobbies are also important.
SMILE is an interesting option also for athletes engaged in contact sports, flight crews as well as military and rescue personnel.

How long does the procedure take?

The entire procedure takes about 15 minutes, the laser correction itself only 24 to 28 seconds.

There is no flap with PRK either. How does it differ from SMILE?

With PRK, the top layer of the cornea (epithelium) is removed manually. The exposed deeper layers of the cornea are then ablated using an excimer laser. Disadvantages of PRK include pain and a long healing process. Stabilization of visual acuity also takes relatively long. PRK is not recommended for the treatment of severe nearsightedness. SMILE also requires no flap. The recovery period and experience is similar to LASIK.

How do I prepare for my surgery?

If you wear contact lenses, most surgeons recommend switching to glasses a few weeks before surgery. You are advised not to apply makeup, lotions or perfume the day you have surgery.
Also, it is suggested that you arrange to have someone bring you home afterward.

Does it hurt?

The procedure is virtually painless. Anesthetic eye drops are used to numb the eye.

What happens after surgery?

Following surgery, you will need to go home and rest. A protective bandage or eye shield is placed over the eye to avoid rubbing it. Eye drops and possibly other medication are typically prescribed to prevent infection and aid in the healing process. It is customary to have a post-op examination the next day. Further examinations are usually scheduled for the following weeks or months.

When can I return to my normal activities?

Every healing process is different. In most cases, visual acuity is very good one or two days after the operation, and stabilizes within one week. Normally, you will be able to drive, work and participate in sports without glasses or contact lenses just a few days following treatment.

Is it safe?

Complications following SMILE surgery are very rare, but cannot be completely ruled out. Your eye doctor will discuss these with you.

  • Dr. Ahmed Shabana

    Specialist Ophthalmology
  • Dr. Sandip Mitra

    Consultant Ophthalmologist and Head of Department
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