Refractive Surgery

 
 
 

 

Refractive Surgery

 
In the normal eye the images pass through the cornea, through the lens, and are projected into the retina. In these conditions the image is clear and when this situation does not happen the refractive errors arise.
 
 

Hyperopia

 
 
 

Myopia

 
 
 
 
 

WHAT IS NEEDED FOR SURGERY:

 
 
 

Astigmatism

 
 
 
 
 
 
 

 

Lasik Technique

 
The most widely worldwide publicized technique is LASIK, due to its safety, efficacy and predictability. LASIK is done in the outpatient setting (without hospitalization), and the anesthesia used is made with drops.
 
Next, a device is placed that holds the eyelids so the eyes do not close during treatment.
The application of the laser can only be performed after lifting a small corneal film (corneal FLAP), which is achieved through an apparatus called Microkeratome. This consists of placing a ring over the eye that will put some pressure on it (painless but annoying maneuver). During this phase, the vision becomes very blurred, being a good sign to continue.
Then a small instrument is placed which will automatically create a film (FLAP). This maneuver represents the most delicate part of the surgery, and lasts only 10 seconds, and the patient should be calm and quiet. After lifting the FLAP is done the laser, that will reshape the cornea according to the previous graduation introduced in the computer. This maneuver is completely painless.
After this maneuver, the FLAP is repositioned on the cornea, gently, in order to protect from the action of the laser. The latest advances in technology allow greater safety in this surgery by making FLAP's increasingly thin, perfect (using disposable razors) and central ablations (laser with eye-tracker), the laser follows the movements of the eye.
 
 

Right after treatment

 
In the first few hours it is normal to feel stingy, itchy, sandy sensation. For these reasons you should, when you go home, rest and get some sleep because it helps relieve the symptoms.
 

What to know about eye drops:

 
the order of drops is different, between placing one eye drop and the other we should leave 3 to 4 minutes. A single drop of eye drops is sufficient and it is normal for some eye drops to peck or burn more than others.
 
 
 

Prior to the operation the LASIK treatment consists of the following:

 
Two days before:
- Antibiotic eye drops - 1 drop 3 times per day,
- Anti inflammatory eye drops - 1 drop 3 times per day.

After the operation and for 1 week:
- Antibiotic eye drops - 1 drop 3 times per day,
- Ronic eye drops - 1 drop 3 times per day,
- Artificial tear - 1 drop hour by hour.

After the first week:
- Artificial tear - 1 drop frequently
 
 
 
 
 

Information on Refractive Correction for Patients

 
 
Before Surgery
 
 
 
Eye Surgery
 
 
 
Laser Eye Surgery
 
 
 
 
 
 
 
 
Refractive Eye Surgery
 

On Surgery Day:

 

On the following days:

 
 
 
Refractive Laser Eye Surgery
 

Immediately following Surgery:

 

On the following weeks: