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Multifocal intraocular lenses

إقرأ عن زرع العدسات متعددة البؤرة داخل العين باللغة العربية


Traditionally, when a cataract develops (cloudy lens), or when a decision is taken to replace the naturally occuring lens by an artificial lens for refractive purposes to correct high short sightedness, the human lens is commony replaced with an artificial intraocular lens (IOL) inside the eye. This lens is usually focused for distance vision and the patient needs to wear reading glasses for all near tasks because of lack of accommodation or the ability of the lens to focus at near.


blurred near distance vision after the age of 40, or with implantation of monofocal intraocular lens after cataract surgery



Through recent advancements in lens technology, we now have several options of multifocal intraocular lenses available that can provide a range of vision (near through distance) enabling a high degree of freedom from spectacles. A multifocal lens implant provides excellent vision after cataract surgery at a variety of distances eliminating the need for reading-bi-multifocal glasses afterwards.

Seeing clear ant near and far distances after multifocal restor intraocular lens implantation at Dr Ahmad Khalil Eye CLinic in Cairo



One of the most advanced and widely accepted lenses used in modern practices in the world are the ReSTOR intraocular lenses. They can provide a full range of functional vision for patients who have a strong desire to significantly decrease their dependence on glasses and contacts. So, patients implant will likely find that they can drive, watch television, read or do crafts-without the need for glasses

read why we need multifocal lenses after the age of 40 or after having cataract surgery

Eye ability to see at near (accommodation) and presbyopia

 

The Acrysof ReSTOR

multifocal restor intraocular lens implantation at Dr Ahmad Khalil Eye CLinic in Cairo, Egypt

The AcrySof® ReSTOR® lens is a breakthrough lens that uses apodized diffractive technology (similar to technology used in telescopes and microscopes). It affords cataract patients restoration of vision at all focal lengths from near through distance.

For most cataract patients, life without reading glasses or bifocals is something they either experienced before presbyopia or they just dreamed about the most of their lives. But today, the AcrySof® ReSTOR® IOL is turning those dreams into reality with its revolutionary lens technology, which is designed to allow patients to see clearly at all distances without bifocals or reading glasses.

Dr. Khalil is a leader in implantation of the ReSTOR IOL and was among the first cataract surgeon in Cairo to implant the ReSTOR lens.

multifocal restor intraocular lens at Dr Ahmad Khalil Eye CLinic in Cairo multifocal restor intraocular lens implantation at Dr Ahmad Khalil Eye CLinic in Cairo

the ReSTOR lens is implanted through a tiny incision, and unfolds inside the eye to take its planned location


  • The ability to read and perform other tasks without glasses varies from person to person but is generally best when multifocal or accommodative IOLs are placed in both eyes.
  • It usually takes 6 to 12 weeks after surgery on the second eye for the brain to adapt and vision improvement to be complete with either of these IOL types.
  • Each person's success with these IOLs may depend on the size of his/her pupils and other eye health factors. People with astigmatism can ask Dr Khalil about toric IOLs and related treatments
  • Side effects such as glare or halos around lights, or decreased sharpness of vision (contrast sensitivity) may occur, especially at night or in dim light. Most people adapt to and are not bothered by these effects, but those who frequently drive at night or need to focus on close-up work may be more satisfied with monofocal IOLs

The following table is provided as a brief summary of outcomes. Please note that a great number of studies have been performed to look at the outcomes of lens surgery and implantation of monofocal as well as multifocal IOL’s. You should ask any questions you have before you make a decision regarding your desire to have mIOL implantation.

% Totally free of spectacles

% Severe glare

% Severe halos

% Who would have the same lens implanted again

Monofocal IOL

10

Severe:  up to 0.7%
Moderate:  up to 5%

Severe:  Rarely

Moderate:  up to 2.5%

Not asked

mIOL

75 - 85

0 – 8.5

4

95

Chiam PJT et al.  Journal of Cataract and Refractive Surgery 2006; 32: 1459-1463
Wolffe M et al.  Eye 2006 Aug 25 [Epub]

 

Medicine is a science and art and above all a direct human relation between a patient and his doctor. All information in this site are intended to support not to replace the direct physician-patient relation.

Contact Dr Khalil Eye Clinic in Cairo

send email enquiries to:

info@eyecairo.net

Phone: 20 (2) 3760 6985

Address: Dr Ahmad Khalil Eye CLinic, Saridar Clinic Bldng, 92 Tahrir St, Dokki, Giza and 12311