By Jorge L. Alió, Joseph Pikkel
This ebook presents the working towards ophthalmologist and physician with up to date info at the use of multifocal intraocular lenses to do away with pseudophakic presbyopia. counsel is supplied on kinds and versions of intraocular lens, symptoms, collection of sufferers, implantation, neuroadaptation and problems and their avoidance. A key aim is to let the practitioner to choose the simplest lens for the person sufferer, making an allowance for specified conditions. moreover, the implications completed up to now with diversified lenses are analyzed and suggestion is given at the administration of expectancies. The authors are stated foreign specialists who draw upon their very own event and the peer-reviewed literature to supply the practitioner with state-of-the-art details and evidence-based guidance.
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Extra info for Multifocal Intraocular Lenses: The Art and the Practice
As the steps move away from the center, they gradually decrease in size, blending into the periphery and sending a decreasing proportion of energy to the near focus. When the pupil is small (when reading), the lens maximizes near vision. In dim-light conditions when the pupil is enlarged, the lens becomes a distant-dominant lens. The refractive region of the optic surrounds the apodized area and is dedicated to distance vision. 00 D add power for near vision. 50 D since 2012). J. Hoffer and G. 8 Fig.
The use of multifocal intraocular lenses has become more common, and technological innovations as well as new designs have resulted in a constant improvement of these lenses. As a result, there is a large variety of multifocal intraocular lenses in the market and surgeons may be confused as to what lens they should choose . The value added by multifocal intraocular lenses, in comparison to monofocal lenses, is the multifocal lens’ optical function. A good multifocal intraocular lens design should give the surgeon the tool to adapt vision to the patient’s lifestyle.
That may cause a neuroadaptive problem. Choosing the multifocal intraocular lens by taking into consideration the overall demands from an ideal lens and fitting it with the patient’s needs, personality, and lifestyle, as in the previously discussed guidelines, can bring about beneficial result to the patient and the surgeon. Though we described here possible complications of multifocal intraocular lens implant and a long list of preliminary considerations, overall, the value of multifocality for patients far exceeds the temporary discomfort of patients and surgeons and the short-term dysphotopsia that a few experience with multifocal intraocular lenses  (Fig.