Myopia remains one of the most common vision defects today and is caused by the length of the eyeball.
For cases of high myopia, which due to the quantity of diopters or the low thickness of the cornea cannot benefit from laser correction methods (such as PRK or LASIK), until a few years ago it seemed that nothing else could be done.
Fortunately, for several years, another technique has been established for cases like these: the implantation of phakic intraocular lenses (ICL). This lens will be inserted intraocularly, behind the iris, behind the pupil hole and in front of the natural crystalline lens, which is kept intact, it is not, in fact, replaced as in cataract surgery, so that the patient can continue to accommodate and see up close.
The visual quality of this correction is very high because all incoming light rays pass through the pupil and are corrected by this lens. The implant is biocompatible and visual stabilization is achieved very quickly.
The procedure is performed under topical anesthesia, so only with the instillation of drops on the ocular surface, then a micro incision is made (just over 2 millimeters, smaller than the tip of a ballpoint pen) through which the lens is inserted into the eye with the pupil dilated, rolled up, which as soon as it is inserted unrolls and is positioned. Subsequently the pupil is narrowed and the lens assumes its definitive position. With this procedure we can correct up to 18 diopters of myopia and 7 diopters of astigmatism. It is almost painless and very short, from a stabilization of the vision in two or three days, but in the majority of cases already from the first post-operative day, the patient will achieve good vision.
Another advantage is that the cornea is not thinned at all.

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