More than 13 million Americans suffer from cataracts , the leading cause of vision loss for adults 60 and over.
Cataracts occur when the eye's lens becomes cloudy, obstructing the passage of light to the retina.
These obstructions lead to vision loss and ultimately corrective surgery to implant artificial lenses, but these implants often leave patients dependent on eyeglasses. In the study, the multifocal IOL demonstrated superiority when compared to a conventional monofocal IOL, specifically in the areas of spectacle dependency, distance, near vision and overall patient satisfaction. This study shows that the Array multifocal lens is ultimately more effective than comparable monofocal lenses in the improvement of cataract patients' vision. While conventional monofocal IOLs provide enhanced vision within a particular distance range usually far they typically require that patients wear eyeglasses for near-distance tasks. The Array multifocal lens, however, uses multiple, concentric rings of varying optical power, with several zones of focus to provide vision over a range of distances.