Farsightedness is the result of the visual image being focused behind the retina, rather than being on it, directly. It could be caused by the fact that the eyeball is too small or that the power of focus is too weak.
Farsightedness is often present from birth however children have a very flexible eye lens that helps to compensate the problem. The majority of children with time outgrow such condition. As aging occurs, it is possible that the use of glasses or contact lenses may be required in order to correct the vision. If you have someone in the family, with farsightedness, you also have greater probability to suffer this problem.
Symptoms:
- Eye pain.
- Blurred vision of nearby objects.
- Squinting eyes or cross eyed (strabismus) in children.
- Eye fatigue.
- Headache while reading.
Refractive Surgery:
The objective of this surgery is to obtain a clear vision, so that the light rays pass through the eye (cornea, pupil and crystalline) reaching together at the retina, permitting a photo image on the retina, without the need to use eyeglasses or contact lenses.
“The result of the refractive surgeries is eminently good. The operation has very few risks, the period of convalescence and pain are minimal and the improvement of the vision is notable, around 95% or more of the cases” according to Dr. Roberto Zaldivar, scientific director of the Department of Refractive Surgery and Cataracts of Zaldivar Institute.
Esta parte es igual a lo que dice para miopía, yo lo pondría una sola vez especificando que es para ambos defectos, miopía e hipermetropía. O sea, en el título de Refractive surgery, luego de explicar ambos defectos,pondría For Miopía and Hyperopia.
iLASIK ™
IntraLase™ in Refractive Surgery
The Intralase™ is the most advanced laser technology in the world for refractive surgery.
Refractive Surgery
Correction of myopia, hyperopia and astigmatism.
From the first quartz crystals until the use of contact lenses, science has been constantly evolving in order to achieve precise and definitive solutions to severe problems caused by refractive defects such as myopia, hyperopia and astigmatism .
More than 250,000 people worldwide improved their vision thanks to refractive laser surgery, a procedure that has reached highest levels of precision and safety.
The technological revolution in this field corresponds to the incorporation of lasers of the latest generation and the measurement and treatment of optical aberration added to the refractive error.
For all this, we say that the laser refractive surgery has become the choice of thousands of people worldwide.
INTRALASE™
Innovative technology, precision and safety.
The Zaldivar Institute uses advanced laser technology, called Femtosecond Laser.
This technology has not only beneficiated refractive Surgery, but also corneal grafts and corneal surgery, especially intra corneal rings placement for patients with keratoconus.
Up to now, the refractive surgeons’ procedure most utilized to treat defects, such as low and moderate myopia, hyperopia and astigmatism, has been the LASIK (Laser Assisted In-Situ Keratomileusis) that combines the use of microkeratome for the corneal cut and the EXCIMER LASER for the desired correction.
With INTRALASE ™ the cell tissue is cut in an optical form, by the emission of thousands of pulses of the new FEMTOSECOND LASER. This technology replaces the microkeratome.
Another advantage of using Femtosecond , is the brevity of the surgical time since this system allows doing the procedure in a single step (One-Step LASIK) thus giving the patient a more comfortable experience by shortening the time spent in the operating room.
This procedure has been named iLASIK ™, it’s done under topical anesthesia, (only drops), and the patient goes home right after the operation. This surgical technique is applied to cases of low and moderate myopia, hyperopia and astigmatism.
The possibility of a better vision
LASIK guided by wavefront (personalized).
This technique allows high quality and very precise surgical corrections, in corneas with optical aberrations added to common refractive errors (myopia, hyperopia and astigmatism).
Our Institute has the technology to correct such aberrations with ZYOPTIX combined with the use of INTRALASE ™
This integral system provides the possibility of personalizing the treatment, being based on the individual study of optical aberrations of each patient.
Eye Tracker: greater security.
As an additional element of safety, the laser has a guide system called EYETRACKER. This technology allows monitoring the slightest ,horizontal and rotational, eye movement at real speed .It is a system similar to those used by fighter planes with an overall accuracy in focusing and monitoring of the target.
Other surgical alternatives.
Today with ILasik ™ the majority of single or combined refraction defects have solution. However, there are cases of night myopia, important optical aberrations, extreme myopia or hyperopia, or corneal problems that need to be resolved with other procedures.
The extreme refraction defects have got benefit with the use of refractive implants, alone or combined with the iLasik™.This procedure, called BIOPTICS, was developed by Dr. Roberto Zaldívar in 1996 and today is referred as iBIOPTICS.
A brief mention deserves the use of the system INTRALASE™ in the corneal surgeries destined to lamellar and endothelial corneal grafts and for the placement of intra corneal rings (ICR) for patients with keratoconus, alone or combined with the laser for CROSSLINKING.
What do I do to be operated?
Preliminary examination.
It is indispensable to have a thorough eye exam in order to determine if the person is eligible for the laser surgery.
Information.
In consultation with the doctor, the patient is given all the necessary information and a detailed description of the defect and surgical alternatives. Informed, and without any doubt about its ocular reality, the person has more confidence to make a decision regarding the surgery.
Measurements and visual tests.
Pre-surgical examinations are very important, and are associated with eye examination that the specialist makes in his/her office.
The procedure and the preliminaries.
Those who wear soft or disposable contact lenses should suspend their use for seven days prior to surgery.
If the person wears hard or flexible contact lenses, should stop using those 15 days before surgery.
As for nutrition, beverages or consumption of medicines, there is no restriction of any kind prior to the operation.
