Papadedes George
Consultant Ophthalmic Surgeon

Papadedes George
Consultant Ophthalmic Surgeon


Refractive Surgery - Laser

Under normal conditions, our eyes function like a camera focusing the image directly on the retina. However, in case of refraction errors the image is focused either in front of the retina (MYOPIA) or behind the retina (HYPEROPIA), thus resulting in blurred image. In the past, our only choice for addressing refractive errors was the right pair of glasses or contact lenses. Today, with the help of refractive surgery we ensure the best possible vision without glasses or contact lenses.

Normal function of the eye.

Nowadays refractive surgery in Greece is a benchmark for the whole world. Refractive errors (Myopia, Hyperopia and Astigmatism) are corrected with excellent results in the majority of cases, and possible complications are minimized. Today we use several safe methods for refractive surgery and the patient can choose the most suitable method for him after consulting his ophthalmologist.

 Normal vision

 Myopic (near-sighted) vision

What are the most common methods?

PRK - Photorefractive keratectomy

We remove the corneal epithelium and then apply a laser to “reshape” the cornea and its refractive power. The procedure is short and painless. Then we place a protective contact lens in order to allow the damaged epithelium to heal nicely.

PRK is a safe method to correct myopia, with exceptional results. It is a preferable method to correct mild myopia, and it is the only method used in case of insufficient corneal thickness. However, it has some significant disadvantages in case of severe astigmatism and hyperopia, while at the same time requires a longer period for vision recovery.

LASIK - Laser in situ - Keratomileusis

With the help of the femtosecond laser, we create a corneal flap, under which the refractive laser is applied. Creating the thinnest flaps, this relatively new technology allows us to obtain excellent results and fewer complications compared to older technology with the use of microkeratomes. In substance, such created flap, covering the central area, ensures significant reduction of the recovery period.We can safely correct with Femto Lasik higher refractive errors, compared to PRK, including severe hyperopia, which has always been a problem in Refractive Surgery.

FEMTO LASIK is the newest and most common method of refractive surgery, which guarantees excellent results. It is a preferable method to correct severe myopia, hyperopia or astigmatism while fast and painless recovery of vision makes it very popular. However, in case of insufficient corneal thickness (known before surgery), this method is contraindicated due to a greater risk of complications.

What is the treatment for severe refractive errors?

In cases of a particularly high refractive error and when laser correction is not possible, we can still deal with it.We place a corrective intraocular lens, with or without removal of the human crystalline lens (a technique we apply to remove cataracts).

In such a case, the selected intraocular lens corrects a refractive error and under certain conditions treats presbyopia in patients at older ages as well.


Am I suitable for one of the two methods?

Many patients wish to correct refractive errors of their eyes with the help of laser technology. However, it is not always suitable either due to the individual characteristics of the eye, or because of the general health of the patient. Refractive surgery, like any other types of surgical procedure, has contraindications, which do not allow using laser technology.

However, a thorough examination by our experienced ophthalmologist, as well as a number of special tests allow us to determine whether you are suitable for one of the methods of refractive surgery.We should always take into account the general status of your health and individual suitability of your eyes. To be suitable for refractive surgery of any sort, a patient should be over 19 years of age with no change in spectacle or contact lens prescription over the last year and without significant eye problems.

In any case, refractive surgery is the best solution for getting rid of corrective glasses and contact lenses significantly improving quality of life. Today the patient can successfully address myopia, astigmatism or hyperopia knowing in detail the whole procedure,in order to avoid possible inconvenience and reduce the risk of complications.

Digital content is courtesy of Prof.Oliver Findl www.findl.at
Digital content is courtesy of Alcon Iberia
Digital content: Credit to National Eye Institute, National Institutes of Health.