Lenses for Cataract: Which is a Better Intraocular Lens Option

Which is a better intraocular lens option for patients undergoing cataract surgery-monofocal or multifocal?

In today’s modern times, there is a trend towards leading an active lifestyle even among the elderly population. Our parents and grandparents love to travel, shop online or at the malls, chat with the grandkids on Skype and are pretty active on social networking sites as well besides using the latest smart phones with equal ease.

Many even prefer to drive around running errands for themselves. This is in contrast to earlier times when retirement meant a more-or-less passive lifestyle.

With the change in lifestyle, there is a change in visual demands of cataract patients as well. Cataract is no longer viewed as a surgical removal of cataract and implantation of an intraocular lens, but it is viewed as a refractive procedure as well.

Lenses for Cataract

Monofocal intraocular cataract lenses (IOLS) are sued for most of the patients undergoing cataract surgery. Distance vision might be corrected with these lenses but patients will need to continue wearing glasses or bifocals for functional near or intermediate vision, as these are not corrected with the monofocal IOLs.

For tasks like reading, cooking, using a cell phone and other close-up tasks, they’d still need reading glasses after surgery.

Modern day requirements need intraocular lenses to provide for all these activities to carry on smoothly. Hence, there is a need for multifocal IOLs for these patients.

To reduce the dependence on glasses for distance and near vision as well, multifocal lenses are designed to correct presbyopia while replacing cataracts. Multifocal IOLS enable most patents to resume their routine activities and favorite hobbies like golfing and reading without their glasses.

These lenses work in a manner that allows distant and near rays to focus on a single point simultaneously. So it becomes possible to see far and near objects equally clearly. This is a result of concentric rings or gratings, either in the front or the back surface of the implant.

The downside of these lenses is an initial longer recovery period of sensory adaptation and a possible increase on night-time halos. In experienced hands and with correct patient selection, the procedure works very well and has superior results compared to monofocal implants.

SOURCE: B-Positive Health Magazine

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