Their appearance is linked to age
Presbyopia is a condition where with age, the eye exhibits a progressively diminished ability to focus on near objects. The cause of presbyopia is mainly a loss of elasticity of the crystalline lens which decreases the accommodation capability of the eye. It’s onset is age-related, usually between the ages of 40 and 45, and it is slowly progressive.
Excimer Laser Technique (Presbylasik-SUPRACOR)
This is a technique designed to eliminate or decrease glasses dependency both for distance and near vision. It is based on classical LASIK surgery but using a new specific software which allows to combine two sequential treatments in the same eye: first we correct distance vision and then a near correction is added.
The indication of this technique is for patients who have presbyopia and myopia or hyperopia with or without astigmatism.
It is very important for the patient to understand which are the real expectations after surgery. PresbyLasik-Supracor aims at the best compromise between distance and near vision, so that the patient can get rid of glasses and improve his quality of life.
Intracorneal Inlay (KAMRA Vision)
The KAMRA Inlay is an innovative and safe procedure to treat presbyopia and is available at Instituto de Oftalmología Castanera. It helps to restore near vision and reduce dependency to reading glasses while maintaining distance vision.
The inlay itself is a small circular and opaque microdisc 3.8mm in diameter, with a tiny 1.6mm central opening. When inserted in the cornea the dark ring serves to block out unfocused light while the small opening in the center of the KAMRA inlay allows focused light to reach the retina. In short this means that vision is great at all distances – looking at a cinema screen in the distance, working on a computer and also reading text on a mobile phone held close up. This microscopic ring has more than ten years of research and development behind it, and has received CE mark in 2005.
Implanting the KAMRA inlay is an ambulatory procedure which last for 10 to 15 minutes for both eyes. First a femtosecond laser creates a small flap in the cornea. This flap is then lifted, and if there is a refractive error (myopia, hyperopia or astigmatism) a LASIK correction is carried out by our advanced personalized Excimer laser and finally the KAMRA inlay is inserted. The flap is folded back and the treatment is complete.
Clear Lens Extraction (CLE)
Clear Lens Extraction (CLE), also called Refractive Lens Exchange (RLE), is a procedure that replaces your eye’s clear natural lens with an artificial Premium Multifocal or Trifocal
Intraocular Lens to correct your refractive error and achieve sharper focus, reducing your need for reading glasses or bifocals. This technique is similar to a cataract extraction.
Multifocal and Trifocal Intraocular Lenses have been designed to get an adequate focus both for distance, intermediate and near, reducing or eliminating glasses dependency. Several studies confirm that about 92% of patients operated with this technique are not using glasses at any distance.
There are currently other types of intraocular lenses called extended focus depth lenses or EDoF that allow focusing from a distance and also the intermediate distance.
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