The Z-PRESBYOPIA treatment is a Presbyopia surgery with Multifocal Intraocular Lens implantation assisted by Femtosecond Laser.
This technique to implant the intraocular multifocal lens consists in substituting the hardened and cloudy lens with an artificial, multifocal lens.
The use of the femtosecond laser in replacing the lens with an artificial intraocular lens is an innovation with huge advantages in safety and quality of vision. The manual processes in traditional surgery are replaced by a pre-programmed laser. This corrects astigmatism with great precision and simultaneously ensures the optimal positioning and performance of the lens.
With this system the eye will be able to focus up close, at intermediate distances and from afar without the need for glasses.
The multifocal, intraocular lens does not change power to focus from afar or up close as the eye’s natural lens does. What happens is that three simultaneous focus zones are created in the retina, one for distance, one for intermediate and one for near vision. This, unlike glasses with progressive lenses, means that it is not necessary to look down to see up close and up to see at a distance. With progressive multifocal lenses you can see near, far or mid-distance from any positioning (up, down or face-on). The brain, naturally and without need for adaptation or learning, selects the image that it wants to use to see up close or at a distance.
The lens that we replace with the intracoular lens is a natural lens that no longer carries out its function of allowing the eye to see up close and at a distance. During the ageing process it gets cloudy, simultaneously causing changes in the visual acuity. Removing the lens prevents the possibility of developing cataracts in the future and means the visual acuity will be stable and permanent making this a definitive solution for presbyopia.