Surgeries

SURGERIES:

For the diverse problems and pathologies that can be presented in the eyes, different treatments may be done; medical and surgical. Medications can be used like eyedrops or like oral or intravenous drugs to treat different ocular diseases as for example the glaucoma. For the eyes there are microsurgical procedures, of high complexity and in which advanced technology is used, looking for to obtain excellent and sure results that allow to prevent the deterioration of the sense of the sight and to improve the quality of the vision. The surgeries of visual correction can be an experience that changes the life, when improving the perception of the world that surrounds us.

Laser Surgery of the Eye

The word "laser" is an acronym for Light Amplification by Stimulated Emission of Radiation. A laser is a concentrated beam of light with high precision and predictability that allows energy to be absorbed in selected tissues and not damage surrounding tissues.
Thermal lasers convert light to heat. This type of laser seals blood vessels and destroys abnormal tissues.
Photoablative lasers cut or sculpt tissue and are used to remove tissue, changing the shape and surface of the eye.
Uses: Treating diabetic retinopathy, and others unusual retinal disorders, including blood vessel problems and tumors, treating glaucoma, open the posterior capsule after cataract surgery , correcting refractive errors.

Refractive eye surgery is a general term for surgical procedures that can improve or correct the eye's focus by permanently changing the shape of the cornea. Refractive errors can be corrected or reduced by refractive surgery. Until recently, if you were one of the millions of people with a refractive error, eyeglasses and contact lenses were the only options for correcting vision. But with the arrival of refractive surgery, some people with myopia (nearsightedness), hyperopia (farsightedness), astigmatism (a cornea with unequal curves), or presbyopia (aging eyes) may have their vision improved through surgery.

LASIK
Laser assisted in situ keratomileusis, or LASIK, is a refractive procedure that uses an automated blade and a laser to permanently reshape the cornea. The reshaped cornea helps focus light directly onto the retina to produce clearer vision. LASIK is usually performed as an outpatient procedure using topical anesthesia with drops. The procedure itself generally takes about fifteen minutes. The surgeon creates a flap in the cornea with a microkeratome. The flap is lifted to the side and the cool beam of the excimer laser is used to remove a layer of corneal tissue. The flap is folded back to its normal position and sealed without sutures. The removal of corneal tissue permanently reshapes the cornea. Vision should be clear by the next day.

Photorefractive Keratectomy (PRK)
Photorefractive keratectomy (PRK) is one of several refractive surgery procedures used by ophthalmologists to permanently change the shape of the cornea to improve the way it focuses light on the retina. PRK is an outpatient procedure, done under topical anesthetic eyedrops. It takes about fifteen minutes. The epithelium, the outer cell layer of the cornea, is removed with a blade, alcohol or a laser. An excimer laser, which produces ultraviolet light and emits high-energy pulses, is used to remove a thin layer of corneal tissue. Your ophthalmologist enters your vision correction information in a computer and the laser beam vaporizes the surface of the cornea up to that precise depth. By breaking the bonds that hold the tissue molecules together, your cornea is reshaped, correcting the refractive error. Because no incisions are made, the procedure does not weaken the structure of the cornea. After PRK vision is blurry for 3 days to one week.

Phacoemulsification (Phaco)
Phacoemulsification is a surgical method used to remove a cataract.
In phacoemulsification, an ultrasonic oscillating probe is inserted into the eye. The probe breaks up the center of the lens. The fragments are suctioned from the eye at the same time. A small incision that often does not require sutures to close can be used since the cataract is removed in tiny pieces, a foldable intraocular lens implant, or IOL, is placed permanently inside to help focus light onto the retina. Vision returns quickly and one can resume normal activities within a short period of time.