الفهرس | Only 14 pages are availabe for public view |
Abstract IOL design has developed through the years passing through several generations and has now become extremely successful with very few complications. More recently, the majority of effort and funding appears to be spent on the development of complex foldable IOLs that not only restore the refractive power of the eye after cataract extraction through small incisions, but also provide some special features that include multifocality, toric corrections, pseudoaccommodation, and postoperative adjustment of the IOL refractive power. Intraocular lenses (IOLs) classified based on the biomaterials (polymers) used for the manufacture of IOL optics into two major groups, namely rigid and foldable: I- Rigid, manufactured from polymethyl methacrylate (PMMA) II- Foldable, manufactured from 1- Silicone, 2- Hydrophobic soft acrylic materials, 3- Hydrophilic acrylics also known as hydrogels III- Specialized foldable intraocular lenses include: - Aspheric intraocular lenses. - Multifocal intraocular lenses. - Accommodative intraocular lenses. - Toric intraocular lenses. - Blue light-filtering intraocular lenses. |