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Why 3 May Be The Ideal Number When It Comes To Better Vision After Cataract Surgery

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Why 3 May Be The Ideal Number When It Comes To Better Vision After Cataract Surgery

Why 3 May Be The Ideal Number When It Comes To Better Vision After Cataract Surgery

Posted on: Tuesday, May 15, 2018
Author: Sebastian Lesniak, M.D.

 

Consider for a moment the sophistication of your visual system. To see things correctly, your eyes have to take in vast volumes of information; then your brain must process that information in milliseconds so your body can react appropriately. Most people are aware of the invention of bifocal glasses, which help to focus on objects that are both close and far away. But what about objects which are neither? If an object is on the border between short and long vision, then traditional glasses, contact lenses or even bifocals may not be able to assist the wearer to focus appropriately. 

A Trifocal Intraocular Lens Could Soon Arrive In The United States 

The good news is that a trifocal Intraocular lens (the type of lens technology implanted during cataract surgery) has been invented that can help patients focus on objects at near, far and even in between. 

The Zeiss AT LISA tri and AT LISA tri toric are part of a family of trifocal intraocular lenses that offer hope for people who desire improved vision at short, intermediate and long distances. In a clinical study, nearly 100% of patients reported that after these lenses were implanted, they no longer required the use of spectacles. And on an even more positive note, in a entirely separate study, 97% of users recommended this intraocular lens to their family and friends. 

Will This Lens Require A More Complicated Procedure? 

Common sense might dictate that because the lens has to focus over three distances, it would naturally be bigger, and potentially require a more challenging process to implant it. In fact, this implant can be placed through a minimal 1.8 mm corneal incision, which is even smaller than the typical 2.75 mm corneal incision used in lens replacement procedures. Smaller incisions make cataract surgery safer and induce less corneal astigmatism. 

How Do These New Intraocular Lenses Compare To Those Available In The United States Today? 

Several advanced lens technologies are currently available in the United States. Premium Intraocular Lenses such as the Symfony Lens, for example, give extended depth of focus and provide distance, and intermediate vision. Traditional multifocal intraocular lenses offer distance and near vision, but the intermediate range may still be blurry. Ophthalmologists therefore are forced to make somewhat of a compromised choice, dependent on which areas of focus are more important to their individual patient. 

As Zeiss AT LISA tri and AT LISA tri toric have not been approved by the FDA, Matossian Eye Associates are unable to offer them at present. Our hope is they will receive the required approval soon so our team of ophthalmologists can offer these lenses as an option for our patients who desire improved vision following cataract surgery. 

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