The treatment is done on an outpatient basis; hospitalization is not required. The patient can leave the clinic two hours after the procedure.
The procedure only lasts a few minutes and assuming there are no complications both eyes can be treated in the same session.
Before entering surgery several anesthetic drops are applied in each eye.
The treatment takes place in four phases:
In the first phase, a suction ring appropriate to the diameter and type of eye is put in place and the removal is planned.
When the suction has reached a level of interocular pressure that guarantees the non refractive incision can be made correctly, the motor for the knife is assembled.
The incision separates a thin layer of corneal flap 160 or 180 microns wide, according to the criteria of the surgeon, with an instrument called a microkeratome.
This incision leaves the stroma (layer of the cornea) free and ready for the application of the laser.
The treatment is programmed, having previously been introduced into the computer database that forms part of the laser.
The “eye tracker,” an eye tracking system that allows the laser to continuously follow the movements of the eye, is focused ensuring perfect execution of the treatment. In this way, each pulse of the laser is applied in the right location.
Once the laser application has been completed, the corneal flap is put back in place without the need of sutures, but not before washing the stroma. Finally, the eyelids are released and the patient can blink freely without fear of causing damage to the cornea.