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Multifocal Lens Implantation

Now for the Good News!

Recent advances in eye surgery and multifocal lens implant design mean that glasses for distance and reading can be a thing of the past.

How does Multifocal Lens Implantation work?

The eye can be likened to a camera.  Light enters the eye through the cornea and is focused onto the retina by the natural lens inside the eye. 

The natural lens can be replaced by a multifocal lens implant. This advanced design of lens corrects the focusing of the eye. It has the major advantage of being able to correct both near, intermediate and distance vision. 

The basic surgical procedure is the same as phacoemulsification cataract surgery, one of the safest operations in medicine today.


Results with  Multifocal Intraocular Lens.

I recommend the AT LISA trifocal intraocular lens (made by Zeiss). Studies have shown high rates of patient satisfaction with this procedure. (97.5% willing to recommend the procedure). 

Further information on this lens can be found by clicking on the following link. trifocal-lenses.html

The vast majority of patients are able to drive, use the computer and read without glasses after the procedure. In some patients, very visually demanding tasks such as reading very small print or spending long periods on the computer may still require a low strength spectacle prescription.

Often the best results are not obtained until several weeks after the second eye is done as the brain becomes accustomed to the new multifocal lens.

What are the risks?

No surgical procedure is without a degree of risk.  Fortunately modern phacoemulsification surgery with multifocal lens implantation has a very low rate of complications. 

Please read this in conjunction with my information on phacoemulsification cataract surgery which outlines the risks of cataract surgery.

Some patients notice dazzle and glare at night around lights after multifocal lens implantation. If it is noticed is usually not troublesome. These visual side effects usually resolve over a period of a few months. If you do a lot of night driving, however, a multifocal lens may not be for you.

Sometimes the refractive results are not as was hoped. If there is unexpected  residual long-sight, short sight or astigmatism after the procedure an enhancement procedure may be required.

Occasionally patients do not adapt to the multifocal lens and the lens has to be replaced with a non multifocal lens. If this is needed, this is better done within a couple of months of the procedure. This occurs in 1-2% of patients who have a multifocal lens implant.

The decision on whether to have a multifocal lens implant is an individual one. Start by thinking about how strong is your desire to reduce your dependence on glasses. Although multifocal lenses carry no guarantees they greatly improve the odds that you will be much less reliant on glasses.