Multifocal IOL Lens Implant Comparison Chart
Comparison Chart of Different Multifocal Intra-Ocular Lens Implants
|
(Alcon) |
(AMO-Abbott Medical Optics) |
(Bausch&Lomb) |
|
Material |
Hydrophobic Acrylic |
Acrylic |
Biosil, a biocompatible third-generation silicone. |
Acrylic |
Design* See chart below |
Diffractive/Aspheric Multifocal based on the optical principal of apodization* |
Diffractive/Aspheric Multifocal - Aspheric front surface and a diffractive posterior surface for near and distance images |
Accommodating lens* with new aspheric design specific to AO version |
Zonal Refractive Multifocal |
Enchancements |
UV blocker* with chromophores* |
-UV blocker |
No UV blocker |
UV blocker |
Designs |
Advantages |
Disadvantages |
Examples |
Zonal Refractive Multifocal |
Creates several simultaneous images, allows for viewing objects at all distances |
Undesirable visual aberrations - including night glare, halos, and starburst |
ReZoom |
Diffractive/ Aspheric Multifocal |
-They compensate for spherical abberation and improve visual quality in most patients |
Reduced intermediate vision |
AcrySof ReStor, Tecnic Multifocal |
Accommodating IOLs |
-Simulates the natural accommodation process by allowing the IOL to move based on ocular muscle contraction, much like the natural lens did before cataract formation and removal |
Reduced near vision that often requires the use of reading glasses to improve reading at near. |
Crystalens HD, Crystalens AO |