Presbyopia is a vision defect that inevitably appears with age, approximately from 40 to 45 years old, and progresses to 60, causing difficulty to focus and see nearby objects correctly.
Today there is a wide variety of treatments and techniques to correct presbyopia, both laser and by implanting intraocular lenses. Next, we discuss in more detail what each one of them consist of:
Laser treatments to correct presbyopia
The procedure used in laser treatments to correct presbyopia is similar to usual LASIK technique used to correct other visual defects (myopia, hyperopia, astigmatism):
- First, a thin layer of the outermost part of the cornea is lifted to apply the laser.
- The cornea is remodeled with the laser to correct vision.
- The layer of the first step is put back in place at the end of the process, covering the treated area, and allowed to heal naturally.
The difference between the treatments is in the way in which the cornea is laser modeled, according to the visual defect to be treated. In the case of presbyopia, two different techniques can be used: Monovision, and PresbiLASIK or Supracor.
Laser treatment of presbyopia “Monovision”
This technique consists of correcting the vision in one eye to see up close and in the other to see from afar, so that the brain is in charge of choosing at every moment the image of which eye to use, according to the distance at which it is necessary to see.
In this case, when remodeling the surface of the cornea, it is done differently for each eye: one of them graduates for near vision and the other for distant vision.
However, keep in mind that this method requires a period of adaptation by the patient, since the brain needs to get used to using the image of one eye to see up close and the other to see from afar.
Presbyopia treatment with PresbiLASIK or Supracor
In this technique the surface of the cornea in both eyes is remodeled so that it behaves as if it were a multifocal lens, with an area to see up close and another to see from afar.
In this case it is the eye that decides through which zone of the cornea to see according to the distance of what we are trying to see.
Advantages of laser treatments to correct presbyopia
Laser treatment with any of these techniques is done quickly, easily, safely and painlessly. The procedure lasts only about 20 minutes for both eyes and, after resting a couple of hours and a postoperative examination by the ophthalmologist, the patient can return home.
In any laser surgery to correct vision, the patient’s cornea must meet certain conditions, including having a certain thickness at least to be able to perform the laser treatment safely, so not everyone is eligible to undergo laser surgery, should opt for other treatment alternatives. In any case, the specialist will previously perform a thorough examination to check if the patient is suitable for laser surgery.
In the case of the “Monovision” treatment of presbyopia, it has the disadvantage that it requires a time of adaptation on the part of the patient to get used to it.
Treatments of presbyopia with Femtosecond laser
As already mentioned, in both previous techniques to correct presbyopia and in any other LASIK treatment, the first step of the laser procedure consists of lifting the outermost layer of the cornea.
In traditional LASIK a specialized surgical tool is used that performs this by means of a “cut”, but using the femtosecond laser it is possible to separate said layer without the need of cuts.
In this way, optionally, the use of the femtosecond laser can be combined with any of the laser techniques to correct presbyopia, resulting in a procedure that is performed only with lasers.
Treatment of presbyopia by implantation of intraocular lenses
In addition to laser treatments, presbyopia can also be corrected by multifocal intraocular lenses. These lenses are implanted in the patient’s eye replacing the crystalline lens, so that the procedure performed is the same as for cataract surgery.
For patients who do not have cataracts yet, replacement of the crystalline lens with multifocal intraocular lenses to correct presbyopia also prevents the appearance of cataracts in the future, since the crystalline lens, whose aging and opacification is the cause of the cataracts, has already been replaced.
On the other hand, in case of patients who already have cataracts, presbyopia can also be corrected during the same procedure if the appropriate lenses are implanted during cataract surgery.
- The same treatment corrects presbyopia and cataracts, in a single procedure.
- It can be an alternative for those patients not suitable for laser treatment.
- The surgery is more complex than laser treatment.
Treatments to correct presbyopia at Vithas Xanit International Hospital
At Vithas Xanit International Hospital we have the best specialists in ophthalmology that, together with the latest technology for the correction of visual problems, allow us to obtain the best possible results in the correction of presbyopia. Contact us if you want more information or make an appointment.