Intraocular Lenses Are Designed To Help Persons See Better

November 12, 2012

Intraocular Lenses Are Designed To Help Persons See Better

Intraocular lenses are actually fake lenses that an ophthalmologist implants when the eye’s crystalline lens has become cloudy, leaving a person unable to see.

Intraocular lenses – These are the fake lenses surgeons will implant after the crystalline lens of the eye has become cloudy, demanding replacement. The primary function of the intraocular lenses is to center light on the back of the retina, just like the lens of a healthy eye would do.

Here, light rays are then changed into electrical impulses, which will make their way to the brain. In the brain, the electrical impulses are than changed into images. Should the light not be focused just right on the retina, the brain won’t be able to process those images right.

Intraocular lenses have similar general construction as the earlier versions. How so? They have a corrective, round central portion with two arms that will keep the eye in place. However, modern-day intraocular lenses vary in what they are comprised of:

  • Acrylic

  • Plastic

  • Silicone

The majority of the IOLs today are approximately a quarter of an inch, sometimes less, in diameter. They’re also soft enough so they can be folded and implanted in the eye through a minute incision.

The Kinds Of Intraocular Lenses

Posterior chamber lens is the most common kind of intraocular lenses, which means it’s implanted behind the iris inside the capsule where the regular lens was situated. When its’s positioned in front of the iris, as what generally happens with a damaged lens capsule, it’s known as the anterior chamber lens. What’s the most common intraocular lens and, from it, what lenses have been created?

Monofocal Lenses – This delivers a set focal point, typically for distance vision. Cataract surgery patients can clearly see within a certain range. Approximately 95 percent of folks who have a standard IOL can get their vision returned to the pre-cataract state. But, the majority of patients will still need glasses for distance vision or reading.

Monovision is the method surgeons may decide on, which involves the IOL in on eye for the near vision and IOL for the other eye for the distance vision. It demands adaptation since both eyes will be oriented towards various needs.

A Look At Advanced Technology IOLs

Multifocal IOLs are a new type of lens that takes care of multiple focal points and decreases the need for contact lenses and eyeglasses under cataract surgery. These lenses are comprised from innovative materials with distinctive features, which is possible through the very specialized optics that separate light and focus on several focal points to provide a range both near and far sight.

Accommodative IOLs are seen as monofocal, which means they have a fixed focal point. This kind of lens works in response of your eye’s muscle, allowing it to see several focal points.

Astigmatism Correcting Intraocular Lenses

Besides treating cataracts, some IOls can fix astigmatism during surgery. These kinds of lenses will reduce the need for after surgery distance visions glasses.

It’s important to keep in mind that everybody is different, so a lens that works for you won’t necessarily work for your best friend. Thus, you need to speak with your ophthalmologist to determine the course of action and treatment best for you.


Category: Articles