LASIK are the initials in English of laser in situ keratomileusis. This procedure involves creating a corneal flap cutting directly some stromal tissue with an excimer laser, which flattens the cornea to treat end myopia or increases its slope to correct farsightedness.
A good candidate must have at least 18 to 21 years of age and should have a stable refraction. Patients with ocular disorder, such as severe dry eye syndrome, uveitis, systemic diseases or those taking drugs that alter wound healing, are poor candidates.
Keratoconus, an abnormality in the cornea conical and irregular, is a contraindication for surgery because the results are unpredictable. It should be an analysis of the corneal curvature, often through a corneal computerized topography for all preoperative patients, because early keratoconus has a prevalence up to 25% in this population and may go unnoticed with other diagnostic means.
In the early days of post-operative degree of vision may be slight variations as a result of changes in refraction, which is irrelevant.
It is not uncommon to have foreign body sensation in the eyes, irritation (red eye), watery eyes and noticeable swelling of the eyelids, because it is a natural reaction of the eye to the healing process.
The stabilization process of the optical defect is about three months, after which if there residual could perform a simple correction.
A new life
Your final visual acuity will be about the same as you had with its maximum optical correction.
A corneal transplant (also known as keratoplasty or corneal graft) involves removing the central portion of a diseased cornea and replacing it with a donor cornea.
The cornea is the clear part of the eye located in front of the iris and pupil.
This procedure is performed when the patient’s eyesight is affected due to scarring or damage caused by injury or disease.
Laser diode 532
The laser diode is designed to be used in multiple retinal diseases such as diabetic retinopathy, central serous chorioretinopathy, retinal tears and retinal vascular diseases, among others.
We have different methods for managing the laser, including indirect laser, which allows the treatment of very peripheral retinal pathologies and treatment of retinal detachment without surgery (intraocular using gas injection), that in selected cases.
Phakic lens implants
The AcrySof® CACHET ™ Lens is designed to improve vision in collaboration with the lens of the eye itself. It is implanted in the anterior chamber of the eye between the iris and Cornea.
With this lens the image was blurred before without glasses is now clear and crisp.
For this surgery the eye must have enough cells to protect the cornea.
The fundamental goal of glaucoma treatment is to reduce intraocular pressure; this can be achieved with the use of drops that decrease aqueous humor formation in the eye, or drops to facilitate aqueous humor outflow.
In patients where the drops are not sufficient to lower intraocular pressure the following surgical procedures are recommended:
– Placing Ahmed valve
– Laser iridotomy
Corneal ring surgery
They are polymethylmethacrylate ring segments which are inserted into the intermediate periphery of the corneal stroma.
The purpose of the corneal rings is to modify the corneal curvature, improving the distortion of images.
This procedure is to slow the progression of keratoconus.
Cataract surgery is done today with the technique phacoemulsification. This uses a fluid system and ultrasound which serves to disappear the cataract.
2.2 mm incisions are made so no concerns for points or suture are present, and this facilitates visual recovery
You must place an intraocular lens for the final vision. There are a variety of intraocular lenses with different properties which your doctor will recommend the best choice for you.
It is a Collamer lens which is implanted into the eye of the lens and below the iris, so it is not seen with the naked eye.
This option is left for patients with high myopia of more than 8 diopters or people who have moderate or high myopia with thin corneas.
The ICL lens corrects nearsightedness and astigmatism and is well tolerated by the patient, improving contrast and final visual quality.
Photorefractive keratomileusis is an option for patients with a thin cornea or ocular surface disorders.
Many of the patients who are recommended this procedure are people with demanding physical activities or people who like extreme sports. Since no flap tissue procedure is performed, this decreases the chance of a possible displacement in the future.
The revolutionary surgery RELEX SMILE (Small Incision Extraction Lenticule) is used to correct myopia and astigmatism without having to raise the surface of the cornea. This is a minimally invasive and high precision procedure, applied in the field of corneal refractive surgery.
For this procedure, the femtosecond laser VisuMax (Carl Zeiss) is aplied, which is the most accurate currently used in eye surgery, and can modify the graduation of the cornea through a micro-incision of only 2-4 mm (before the incision was about 20 mm diameter).
Thanks to femtosecond laser, the surgeon, from the outside of the eye, delimits the intracorneal lenticule, which is the part of the cornea that has to be extracted in order to correct the refractive error.
Advantages of the technique RELEX SMILE:
- Patient Comfort: no pain during the procedure and continues to see.
- The incision is minimal.
- It is a very quick procedure, lasting a few minutes
- Not to cut the cornea or heat is applied.
- Reduces the risk of displacement of the sheet surface of the cornea.
- It reduces the risk of surface that may sectioning nerve endings.
- Reduces the risk of dry eye after surgery.
- Reduces the risk of possible further infections.
- Quicker recovery: after two days the person and resumed his regular activities and can play sports.