Guide to Eye Diseases

Advantages and problems of presbyopia-correcting IOLs

It is amazing that presbyopia correction can be achieved through cataract surgery, which is a good example of “killing two birds with one stone”.

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Basic and mixed multifocal IOLs

Since standard monofocal IOLs can only provide clear distance vision and require patients to wear reading glasses for close vision, presbyopia-correcting IOLs with multifocal designs are approved to offer clear vision at multiple distances. There are three brands of multifocal IOLs that are FDA-approval: AcrySof IQ ReSTOR, ReZoom and Tecnis.

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Approved and investigational accommodation IOLs

As we know, some people above 40 can not see clearly at multiple distances, which is caused by the lens’ natural aging and becoming rigid to move smoothly. Among all of the IOLs, accommodation IOL such as the Crystalens has a special design to treat the described presbyopia. An accommodation IOL provides sharp vision by shifting its position with the action of eye muscle and movement, rather than by simply replacing the natural lens. Accommodation IOLs belong to presbyopia-correcting IOLs, so that patients can get multiple distance vision from them.

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