Foldable Intraocular Lens Aspheric Optical Design

In 1949, first intraocular lens (IOL) insertion after cataract surgery was performed by Sir Harold Ridley, in London. Only in the 1970s, the IOL insertion after cataract surgery began to be a standard procedure. The material the first IOL-s were composed of was polymethyl methacrylate (PMMA). The PMMA is a rigid material and the corneal incision had to be at least as big as the IOLs optic and it became its biggest disadvantage in the cataract surgery. The main goal of modern cataract surgery is as smallest incision possible, so the IOL-s had to be flexible and therefore foldable. This goal was achieved by improvements in the IOL design and materials that made them foldable. First foldable IOL-s were made of hydrogel but they were unstable and the development of the first silicone IOL-s overcame that problem. Foldable silicone IOL-s were first implanted in 1978 by Kai-yi Zhou. Foldable IOL’s benefits are its compatibility with a small incision surgery that is self-sealing procedure and the possibility of insertion by a single-use applicators that made the surgery safer. In the future, we can expect some new, different and innovative approaches in the IOL design and materials.

Product Parameters

Foldable Intraocular Lens Aspheric Optical Design are monofocal lenses that correct for spherical aberration. The result is a lens that will provide better overall vision than traditional IOLs, especially at night. Patients who choose an aspheric IOL can get improved contrast sensitivity enhanced functional vision and superior night driving ability.

Product Features

1. Top material: high purity Hydrophilic Acrylic from Contamac UK with excellent material uniformity, good biocompatibility, smooth surface, low silicone oil adsorption rate, bacteria and other sediments are not easy to adhere, no calcification and glistening.
2. Zero spherical aberration: provides patients with improved contrast sensitivity in mesopic, photopic and dim light conditions.
3. Excellent Stability: Medified C loop Provides excellent stability for the intraocular lens in the capsular bag.