LASIK (laser in situ keratomileusis)
It is a method of refractive surgery to correct myopia, hypermetropia and astigmatism LASIK (laser in situ keratomileusis) is the most popular procedure for vision correction by combining laser microsurgery.
Candidate for laser Myopia is:
Someone who is older has than 20 years of age.
Has a stable refraction for at least six months.
Has a sufficient thickness of the cornea.
Does not suffer from any eye diseases such as keratoconus, glaucoma, cataracts, etc.
Has no autoimmune diseases and doesn’t take any immunosuppressive drugs.
Does not lie a period of pregnancy or breastfeeding.
Refraction examination with & without cycloplegia
Corneal pachymetry (measuring of the corneal thickness).
Corneal Topography (mapping of the surface of the cornea)
Slit lamp examination
Fundus (retina) examination
The laser takes place in three stages. In the first stage a flap of corneal tissue is being created either with the microkeratome (mechanical blade) or with the femtosecond laser. In the second step a remodeling of the cornea under the flap with the laser is made. Finally, the flap gets repositioned.
The duration of the LASIK surgery does not exceed 5 minutes per eye and is painless.
The restoration of vision is very fast and the results are very stable and reliable.
PRK (PHOTOREFRACTIVE KERATEKTOMY)
The PRK procedure is applied to patients with thin cornea as well as in patients with mild nearsightedness, farsightedness and astigmatism.
First of all the surface of the cornea the so called epithelium is being removed.
Then the remodeling of the cornea with the laser takes place and at the end a therapeutic contact lens, to help the healing of the epithelium for the next three to four days, is being placed.
The vision has variations for a few days. The therapeutic contact lens is removed in 3-7 days when the cornea has healed completely.
The surgery is performed with anesthetic drops and is painless.
The name came from the number of pulses per second (pulse / sec) with which the laser operates.
The laser emits in the infrared band of the spectrum and in combination with the extremely short action time and the very little energy achieves a photo dissociation (photodisruption) of the tissue in which the laser emits (cornea, lens, etc.). This appears in form of bubbles which ultimately is the force with which the tissue gets bisected with the FEMTOSECOND LASER.
The Cross – Linking is the modern method of dealing with the ektatic-weak areas of the cornea, which are observed in diseases such as keratoconus and in rare cases after refractive surgery.
The method was invented by Professor Prof. Theo Seiler, former Director of the University Clinic of Dresden, Germany (Carl Gustav Carus University), while Dr. Ch. Koulas today medical director of the Attiko Ophthalmological Eye Center was specializing in ophthalmology by Prof.Theo Seiler.
The combination of the use of riboflavin and ultraviolet radiation leads to the enhanced corneal links of collagen.
With this technique conditions such as keratoconus get stabilized. The inhibition of progression of keratoconus reduces significantly the need of future corneal transplantation.
Candidates for this therapy are those who are in the early stages of these disorders.
The surgery is painless, lasts 1 hour in each eye and is done by instilling local anesthetic eye drops and is painless.