If you develop cataracts, multifocal cataract lenses can often help to
restore your vision. To understand the benefits of this type of lens,
it is helpful to first understand how cataracts develop.
The eye has two natural lenses that work together to focus light onto the
retina. The outer focusing lens is called the cornea, while the inner
lens is called the crystalline lens. Light rays pass through the cornea
and then through the crystalline lens. Together, the cornea and crystalline
lens focus incoming light by bending the rays to meet at a single point
on the retina. From there, the light rays are sent as electrical pulses
to the brain where we interpret them as a picture and “see”
what is in front of us.
The crystalline lens is made up primarily of water and protein. Over time
the proteins can clump together, causing the lens to become discolored
and blurry. This condition is known as a cataract. When this happens,
it is necessary to replace the natural crystalline lens with an intraocular
lens implant to restore vision.
The types of lenses that can be implanted are monofocal or multifocal lenses.
Monofocal lenses focus light to only one point in space. A multifocal
lens has more than one point of focus, and is able to simultaneously focus
light from near and far. This addresses both distant and near vision and
makes your eyes less dependent on glasses or contact lenses. The
TECNIS Multifocal Lens is designed to restore youthful vision by providing high-quality vision
at any distance, and in any light condition.
Although this lens implant isn’t the right choice for everyone, it
can help many people who are suffering from cataracts to regain their
vision. If you would like to learn more, Key Whitman would be happy to
answer your questions.
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