Intraocular Lens Implant Options

You now have options for cataract surgery

If you are diagnosed with cataract formation, Moretsky Cassidy Vision Correction wants you to be aware that there are different treatment options available for you.

Cataracts develop when the natural lens of your eyes become cloudy, affecting your sight. Visually significant cataracts can be removed and replaced with an intraocular lens implant on an outpatient basis.

Cataract surgery is indicated when the quality of your vision interferes with your daily activities, be it driving, reading, or just unusual glare or halos associated with lights. Years ago, patients were advised to defer cataract surgery until the cataracts became “ripe.” Cataracts are different than tomatoes, they do not need to get ripe before they are treated.

After the cataract is removed, it is replaced with an intraocular lens implant that is similar to a small soft contact lens which contains an optical prescription that is matched for you, much like your glasses.

However, we now have different treatment options available to address this prescription, the standard or advanced technology implants.

Standard Lens Options

Traditionally, the standard intraocular lens was designed to improve vision to a level the eyes saw before cataract formation occurred, with the additional aid of glasses.

Ophthalmologists today can insert a standard implant which can provide a single distance vision only. Reading glasses or bifocals are then used for fine tuning and reading small print. Most patients accept this, as they are accustomed to bifocals, progressive lenses, or reading glasses.

Presbyopia

Presbyopia is a condition that impairs close vision and requires the aid of reading glasses or bifocals. This begins occurring around age 45 and continues to progress.

Modern advanced technology intraocular lens implants (presbyopia correcting) are now available to permit patients to be less dependent on bifocals or reading glasses, both for distance and near.

Advanced Technology Lens Options – Presbyopia Correcting Implants

When deciding between cataract surgery options, you can now choose an advanced technology lens implant that can enhance your vision, allowing you to see near, far, and in between without glasses or contacts.

With presbyopia correcting lens implants, you can expect a increased range of vision at distance and near, “glasses free,” typically 95 % of the time. Using modern advanced technology lenses and advanced surgical technique, you may, once again, eliminate your dependence on bifocals and reading glasses, yet still enjoy clear far away vision.

Not all cataract patients are candidates for presbyopia correcting lenses, so our doctors will need to evaluate your eyes before you will know if this is right for you. Also, not all ophthalmologists offer or perform presbyopia correcting lens implants with cataract surgery.

Dr. Moretsky and Dr. Cassidy have over 35 years of refractive surgery experience and perform a variety of different refractive surgery procedures, including LASIK. They have a unique skill set and vast experience with all types of refractive surgery and intraocular lens implants.

We are pleased to offer the following advanced technology presbyopia correcting lens implant options:

Other advanced technology lens options include the Toric intraocular lens which corrects for astigmatism. This improves the quality of vision for distance in patients with excess astigmatism. With Toric lenses, patients will still require reading glasses but will enjoy a new level of distance vision that would previously require contact lenses or glasses.

Extended Range Vision Lens – Symfony

(Click here for more info)

Multifocal Intraocular Lenses:

There are two brand types of multifocal lenses. Alcon manufacturers the ReSTOR multifocal lens and Abbott manufactures the Tecnis multifocal lens. Each of these lenses come in three different versions, all of which provide good distance vision, but each designed for specific near or intermediate vision needs.

The best closeup reading multifocal lenses are the ReSTOR +4 multifocal and the Tecnis multifocal +4. These lenses provide good distance vision and allow best closeup vision at about 12 to 14 inches, such as needlepoint work or reading the smallest newspaper print. However, intermediate vision, such as looking at a desktop computer will be impaired without the use of glasses.

The best intermediate vision multifocal lenses are the ReSTOR 2.5 multifocal and the Tecnis multifocal +2.75. These lenses provide good distance and the best desktop computer vision at about 20 inches. However, low-power reading glasses may be necessary for close up detailed vision.

The best compromise between near and intermediate are the ReSTOR +3 multifocal and the Tecnis multifocal +3.25 lenses. These lenses provide good distance vision but allow good vision at near at 17 inches and reasonable vision at intermediate, such as the desktop computer. However, pulling the computer monitor closer may be necessary.

It is sometimes beneficial to place different lenses in each eye to allow the best intermediate vision in one eye and the best close vision in the other eye. Patients typically tolerate this combination of lenses well.

The disadvantage of any multifocal lens implant is that a small percentage of patients may experience severe glare and halos around lights at night, especially headlights when driving. Some patients will describe rings around headlights. Most patients will notice some of these symptoms, initially, but will learn to ignore them. Patients typically do not notice these symptoms after several months. The general rule is the better the closeup vision, the higher the incidents of rings around headlights at night.

One of the distinctions between ReSTOR and Tecnis multifocal lenses involves the need for brighter light to read with the ReSTOR multifocal lens. This makes reading a menu in a dark restaurant more difficult than with a Tecnis multifocal lens. However, some patient’s complain about the Tecnis multifocal lens resulting in more halos around headlights at night. Unlike the Tecnic multifocal, the ReSTOR +3 multifocal can correct for astigmatism with the toric model.

Your surgeon will help you decide which multifocal implant lens best suits your needs, based on special testing, and discussing with you what goals you want to achieve.

ReSTOR Multifocal Lens®

Moretsky Cassidy Vision Correction was the first practice in Arizona to implant the ReSTOR multifocal intraocular lens. There are three versions of this lens, each providing good distance vision, but each designed to maximize focusing at near and intermediate ranges.

The ReSTOR +4 multifocal lens is designed for best small print, such as small newspapers print and hobbies, such as needlepoint. Objects must be held close up at about 12 to 14 inches.

The ReSTOR +3 multifocal is designed to allow good paper work, phone, and tablet reading at about 17 inches. It may be necessary to pull the computer screen closer for best viewing. The ReSTOR +3 multiifocal lens is available in a toric model that corrects for astigmatism.

The ReSTOR +2.5 multifocal is designed for best intermediate vision, such as desktop computer screen at about 20 inches. This lens is especially useful for viewing products while shopping or seeing the golf ball on the tee.

Tecnis Multifocal Lens™

There are three versions of this lens, each providing good distance vision but each designed to maximize different near and intermediate ranges.

The Tecnis multifocal +4 is designed for best small print reading, such as small newspaper print and hobbies like needlepoint work. Objects must be held close up at about 12 to14 inches.

The Tecnis multifocal +3.25 is designed to allow good intermediate vision, such as tablets and desktop computer at almost 17 inches, but having to pull the monitor closer is sometimes required.

The Tecnis +2.75 multifocal is designed for some close vision but best for intermediate desktop computer vision at almost 20 inches. Viewing products while shopping or seeing the ball on the golf tee is maximized with this lens.

Accommodating Intraocular Lenses:

Crystalens®

Crystalens is a monofocal lens that flexes, or accommodates. This is unlike the ReSTOR or Tecnis multifocal lens which rely on sharing light between distance and near. Since there are no multiple focus principles involved with this lens, it is reported that patients enjoy better distance vision, especially while driving at night.

Crystalens has been reported to be more successful with patients who have had previous refractive surgery, such as radial keratotomy and LASIK.

Crystalens does not provide superior close up vision, and it maybe necessary to employ some postoperative blended vision correction for best close vision outcomes. Blended vision relies on a slight increased near vision in one of the two eyes, usually the nondominant to provide a better depth of focus for close vision.

Crystalens patients may be more dependent on reading glasses for real fine print, but may have better quality vision for intermediate and distance than the ReSTOR or Tecnis Multifocal lens.

Patients that may benefit more from Crystalens are typically more easygoing and have active lifestyles enjoying tennis, golf, and other recreational activities. They would not mind rarely wearing reading glasses for smaller print or spending time on a laptop computer. Patients that drive a lot at night or pilots may also be better candidates for the Crystalens presbyopia correcting advanced technology lens implant.

Trulign Toric™

The Trulign Toric Intraocular Lens is a monofocal lens that flexes, or accommodates. This lens, like the Crystalens, permits better intermediate and distance vision, but still requires reading glasses for fine print. Like the Crystalens, patients who drive a lot a night, or pilots, may be better candidates for this lens, than a multifocal lens.

The Trulign Toric implant is based on the established design of the accommodating Crystalens implant, but also corrects for astigmatism. The Trulign Toric implant shares the same benefits as the Crystalens implant, in addition to astigmatism correction. See Crystalens above for more information.

Toric Intraocular Lens

Finally, other advanced technology lens options include the Toric intraocular lens implant which corrects for astigmatism. This improves the quality of vision for distance in patients with excess astigmatism.

During your cataract surgery, Dr. Moretsky or Dr. Cassidy can correct your distance vision independent of glasses by using an advanced technology Toric intraocular lens. The lens design, coupled with specialized implantation technique, recreates the same effect and benefits for distance vision that you would enjoy if you had your glasses on! You will notice improvement in your distance vision, because your cloudy cataract was removed and your astigmatism was corrected. Without the use of this type of implant, you would still have astigmatism in your eye, and glasses would still be necessary for distance, if a standard rather than a Toric intra-ocular lens were used.

With Toric lenses, patients will still require reading glasses but will enjoy a new level of distance vision that would previously require contact lenses or glasses..

Conclusion

These presbyopia correcting advanced technology lens implants are wonderful alternatives to routine use of reading glasses or bifocals. However, under rare circumstances, patients may still require the need for glasses. Presbyopia correcting advanced technology lenses are by far a modern technologic advancement, and some patients describe as a near modern miracle of medical science.

Having realistic expectations and understanding the benefits and compromises involved in presbyopia correcting lens implant technology are important before deciding if one of these lenses would be right for you.

Dr. Moretsky or Dr. Cassidy will examine and interview you to help decide which advanced technology lens is best for you.

Read about Who Develops an Eye Cataract

See why Moretsky Cassidy Vision Correction has been trusted in the Valley for over 35 years




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