Dra. Daniela Barba Castelo | Ophthalmologist
Ocular Laser Surgery
Dra. Daniela Barba Castelo | Ophthalmologist
What is Laser Eye Surgery?
LASIK or laser surgery is an elective surgery, that is, it is not essential to do it so that our eyes continue to function, the benefit that is sought is to cancel or reduce the optical problem that the eyes have so that the patient depends as little as possible on glasses and / or contact lenses.
Once the measurements of the eye are extreme (very long eye) it can lead the eye to a pathological state (pathological myopia) or the extreme measurements in the corneal curvature by making an extreme lens prescription.
Conditions (MHA)
Refractive errors are myopia, hyperopia, and astigmatism.
Laser surgery corrects: myopia, hyperopia and astigmatism.
* The surgery consists of two stages: first, a device that works like an automated razor (microkeratome) cuts a very thin corneal cap or sheet (corneal flap) that is attached to the cornea by a hinge.
The surgeon reclines that cap, exposing the corneal tissue below the cap or flap to the laser.
In the second part of the surgery, the excimer laser modifies the shape of the cornea (removing corneal tissue). Then the surgeon puts that cap back in place.
Information for patients
who are not candidates for surgery
ICL
Phakic lenses are an alternative for those who are not candidates for laser surgery, it consists of the implantation of a lens inside the eye without the need to extract our natural lens. Young patients who do not suffer from eyestrain (presbyopia), are patients who cannot be operated with laser due to the characteristics of their eyes.
Candidates for these lenses:
Young patients who do not yet have eyestrain.
Patients with myopia, hyperopia and astigmatism.
It is important to take into account that each case must be studied to assess whether the patient is a candidate for this procedure.
Process
Surgery is started with topical anesthesia following a micro-incision to prepare the space where the lens will be implanted. The lens is injected into the front of the lens, behind the iris, in a space called the posterior chamber. In this way, the refractive defect of the eye is corrected, resulting in lens independence. It is important to know that this procedure is reversible.
The surgery is done on separate days.
Choices
When the patient already has tired eyes, the case for a pseudophakic procedure will be evaluated, this consists of removing the lens and implanting trifocal lenses.