Standard LASIK (Laser In Situ Keratomileusis)
Lasik has 2 stages:
The cutting of a thin corneal lamella.
Then the action of the excimer laser.
Cutting of a superficial corneal flap or "hood" (100 to 160 microns thick).
Using a micro plane (microkeratome), which cups the eye.
This “hood” attached to the cornea by a hinge will be lifted.
The corneal stroma being exposed, the excimer laser can be applied.
Then the flap put back in place without sutures adheres in a few minutes.
Most often both eyes are treated in the same session in 30 minutes.
Before the myopia lasik operation
A complete ophthalmological examination is essential before any refractive surgery.
Profession, age, pregnancy (wait 3 months after giving birth).
Clinical signs: dry eye, Roaccutane treatment, herpes, glaucoma, diabetes, pregnancy, inflammatory and immune diseases , visual impairment in one eye (amblyopia).
Sight measurements and optical corrections: a stable visual defect is essential.
Examination under the microscope: cornea, lenses, retina, pupil size.
Eye pressure measurement.
Corneal topography (Orbscan): determines the shape and thickness of the cornea, detects keratoconus.
ORA tests corneal elasticity.
The OPD detects high degree optical aberrations (HOA).
Remove your contact lenses before preoperative examinations and before surgery:
Flexible: 3 to 8 days.
Stiff: 1 to 3 weeks.
During the myopia lasik operation in Tunisia
The surgical act is fast (30min for the 2 eyes). The anesthesia is local by a few drops of anesthetic. Sometimes a relaxing premedication is necessary. The patient is lying on the operating table located under the laser, the head is positioned horizontally. The surgeon brushes the eyelids with an antiseptic product (notify me of any allergy to IODE), then sets up a plastic operating drape on the region of the operated eye. The unoperated eye is hidden by an ocular disc. An eyelid maintainer is used to keep the eye open and to prevent it from blinking. For PKR: the peeling of the cornea will be carried out painlessly. For Lasik or Intralase laser:
Preparation of the corneal flap: A suction ring will exert a slight pressure on the eye to block it, then the flap is cut out (Microkeratome or Intralase). The fixation light disappears for a few seconds and returns as soon as the suction ring is removed, the corneal flap can then be lifted.
The Excimer Laser is then activated: The patient is asked to quietly stare at a flashing red fixation light. The cut lamella, held by its hinge, is placed outside the field of the laser and the laser treatment can begin in the depth of the corneal laminae. The laser application time varies according to the defect to be treated (longer for strong myopia and hypermetropia). This phase is painless, the patient hears a crackle corresponding to the impact of the laser on the cornea. Do not worry if the eye moves and it no longer fixes this red light, the laser stops automatically (eye tracker active).
The laser procedure being completed, the lamella is repositioned.
In PKR a dressing lens is put in place for a few days. A few drops of antibiotic are instilled.
Currently in lasik the treatment is most often bilateral and simultaneous (both eyes at the same time). Its advantages: reduction of stress, less movement and absence of optical shift between the 2 eyes.
After myopia lasik surgery
The patient stays in the rest room for 15min then goes home, accompanied, most often without shell or dressing, with protective sun glasses. A local treatment is prescribed for at least 8 days. A complementary treatment will then be prescribed. For 3 to 4 hours after the procedure, the eye is uncomfortable (tearing, burning sensation, blurred vision, discomfort in the light). In case of pain, especially after PKR, an analgesic can be taken as soon as you return home , treatment with antibiotic and anti-inflammatory eye drops should be started. It is strongly advised not to rub your eyes during the few days following the operation.
Can I have myopia and astigmatism surgery at the same time?
Pregnancy and excimer laser?
Pregnancy is a contraindication due to the rare possibility of vision changes during pregnancy. period. Wait 3 months after delivery.
Is the myopia lasik operation in Tunisia painful?
No. The lasik operation is not painful, but sometimes unpleasant: tingling sensation, tickling or light pressure on the eye.
Excimer laser in Tunisia: local or general anesthesia?
The anesthesia is local by numbing drops. No general anesthesia because your attention is necessary to fix the laser light, so that the treatment is perfectly centered.
You see blurry from afar - Myopia -
Myopia is an optical defect of the eye, which is a little too long. The light rays are focused in front of the retina and you see blurred from afar. This refractive disorder affects 25% of the population. Myopia is measured in negative diopters: - 4.00 means myopia of 4 diopters. Visual acuity is measured in tenths; eg. you can be myopic by 4 diopters and have a vision corrected by ten tenths (10/10ths). Myopia appears, most often in childhood, evolves and stabilizes around 20-25 years.
You are considering surgery for myopia, which laser technique should you choose? You are myopic... and sometimes also astigmatic and/or presbyopic.
The pre-operative examinations will give you precise and adapted information:
Surface laser (PKR, lasek or epi-lasik)
Or Lasik: Mechanical classic Lasik or 100% laser femtoLasik
The myopia operation is performed using an excimer laser allowing the correction of myopia in order to free you from wearing glasses and contact lenses, with excellent quality of vision and the least side effects.
When can you swim after a lasik operation?
After 3 weeks.
When can I smoke after myopia lasik surgery?
Avoid smoking in an enclosed area due to dryness and irritation induced during eight days.
Excimer Lasik cost for both eyes is from 1850 Euros including exams and the stay of 4 days with full board.