Posted on May 12, 2011.
How Phakic intraocular lenses differ Crystalens Today, advanced vision technology offers two options for patients seeking an excellent vision improved.
The Verisyse a„c Phakic IOL
Verisyse is an intraocular lens (IOL) implanted in phakic eyes, temporarily or permanently, to improve moderate to severe nearsightedness. The term "phakic" refers to an eye that retains its natural lens. In myopia, the cornea, or front surface of the eye bends light rays so that light focuses properly on the retina. Therefore The cornea is too steep, focusing the light rays in front of the retina and cause blurred vision.
The Verisyse Phakic IOL is implanted behind the cornea, iris, to better focus the light and, consequently, improve vision. The cornea remains in place and continues to focus between objects near and far. People who wear glasses or contact lenses thick and are not eligible for LASIK are excellent candidates for the ILI Verisyse.
Verisyse lenses are made from PMMA, a material used successfully in cataract surgery for over fifty years. The implant procedure is performed on an outpatient basis under local anesthesia and takes about thirty minutes. The best candidates for phakic IOL Verisyse are:
- Over 21
- Have good eye health
- Have stable vision
- Not pregnant or nursing
Crystalens a„c IOL Adaptation
Crystalens a„c is a multifocal implant designed specifically to replace the lens of the eye after cataract extraction. Crystalens is made from a soft silicone that features a hinged. This means Crystalens a„c can work naturally with the ciliary muscles of the eye while the eye can "take account", or shift its focus from distant objects and close. With monofocal IOL, this ability is lost and the patient needs glasses or contact lenses to see clearly at all distances.
Crystalens a„c is implanted using almost identical to the surgical techniques such as cataract surgery. Success rates are high and millions of people now enjoy better visibility and freedom from glasses after cataract surgery because of Crystalens.
The best candidates for Crystalens are people who are:
- Over 50 years
- Cataracts
- You want to find a full range vision
- Have little or no astigmatism
- Have good eye health
- Have not had cataract surgery