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Cataract Surgery

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please call (415) 600-3717 or email eyeservices@pacificeye.com

 Cataract Surgery in San FranciscoCataract Extraction with Intraocular Lens (IOL) Implant

A cataract is a clouding of the normally clear natural lens inside the eye. It can be compared to a window that is frosted or yellowed. This clouding scatters the light passing through the eye resulting in blurry vision, glare or light sensitivity, poor night vision, needing brighter light to read, and/or fading of colors.

Because it is not a film over the lens, it can’t be removed with a laser or eye drops. There are no medications, dietary supplements or exercises that have been shown to prevent or cure cataracts. Surgery is the only way to treat cataracts. Surgery involves removing the cloudy lens and replacing it with a synthetic intraocular lens (IOL). After numbing the eye, the surgeon removes the natural lens with gentle ultrasound (phacoemulsification) and replaces it with an IOL.

Cataract Surgery Cataract Surgery
Cataract Surgery Cataract Surgery

In standard cataract surgery, the IOL has a fixed focusing power that is set for distance vision. Patients who choose a presbyopia-correcting IOL can benefit from improved distance and near vision. There are two general types of presbyopia-correcting IOLs: multifocal and accommodative. Multifocal IOLs use diffractive or refractive optics to restore distance, intermediate and near vision to the aging eye. Accommodative IOLs feature a hinged design that allows the lens to move forward as the eye focuses on near objects.

If you are suffering from a possible cataract condition, our practice can help. To learn more about cataract surgery with multifocal IOL from our practice, please contact us today.

Presbyopia

Presbyopia – the loss of near, reading vision – is a condition that affects almost everyone in their 40 to 50’s. At birth, the natural lens is soft and flexible. As we mature, it becomes less elastic and its ability to change shape is reduced. This reduces the eye’s ability to switch from seeing objects at a distance (for driving) to seeing objects that are near (for reading). Reading glasses, bifocal or trifocal glasses, and/or contact lenses are commonly used to improve one’s range of vision.

In standard cataract surgery, the intraocular lens (IOL) has a fixed focusing power that is set for distance vision. Patients who choose a presbyopia-correcting IOL can benefit from improved distance and near vision.

Multifocal Intraocular lens (IOL)

Until recently, cataract patients received standard “monofocal” lens implants that had only a single focusing power. This meant you had a choice of correction for either far or near vision. If you suffer from presbyopia like many people over the age 50, this would mean that you still need glasses for either reading or for distance vision.
The FDA has now approved several multifocal lens implants for use by certified ophthalmologists. The multifocal IOL lens can increase your chances for freedom from glasses for near, far, and intermediate vision. If you have worn glasses for many years, this might be an opportunity for you to eliminate this hassle from your life.
The FDA clinical results showed that 84% of patients who received the Alcon ReStor® lens in both eyes achieved distance visual acuity of 20/25 or better and near visual acuity of 20/32 or better without correction by contacts or glasses while only 23 percent of the conventional or monofocal control group achieved this level.
Other lenses include the Eyeonics Crystalens®. The Crystalens® features a hinged design that allows the lens to move forward as the eye attempts to focus on near objects, restoring some of the accommodative function in presbyopic patients.

Learn more about ReStor

Learn more about Crystalens

Cataracts & Astigmatism: What are your options?

Surgery to treat cataracts is an outpatient procedure where an ophthalmologist removes the clouded natural lens and replaces it with an artificial lens. Traditionally, the surgeon implants a monofocal intraocular lens (IOL). If you have astigmatism, however, you may still experience blurred and distorted vision because a standard IOL cannot correct corneal astigmatism. To achieve quality distance vision with a standard monofocal IOL, you may still require glasses, contact lenses, or further surgery such as laser vision correction.

If freedom from eyeglasses for distance vision is important to you, you have several options, either during or after cataract surgery, to reduce the need for astigmatism corrective lenses: AcrySof Toric IOL, Limbal Relaxing Incision, and Blade-Free LASIK

Toric IOLAcrySof Toric IOL

The AcrySof Toric (astigmatism-reducing) lens is a foldable lens that an eye surgeon implants during cataract surgery to replace the clouded lens. The unique design of the Acrysof Toric IOL makes it possible to eliminate or reduce corneal astigmatism and significantly improve uncorrected distance vision.

Limbal Relaxing Incision

Limbal relaxing incisions are strategically placed superficial incisions placed on the peripheral cornea, causing it to relax and become more spherical and round. This allow light to focus more precisely on the retina, causing vision to become sharper and clearer. Limbal relaxing incisions takes minutes to perform and can be used alone or in conjunction with cataract surgery.

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