Trifocal Lenses for Cataract Surgery

Abstract

Since the introduction of the first intraocular lens in 1949, many technological
advances have been made in order to optimize its design and construction. Owing to a number
of recent advances and developement of modern lenses, it has now become possible to not only
correct post-operative aphakia but also provide good visual acuity for far, intermediate and
near distances by decreasing or eliminating eye glasses or contact lenses in majority of cases.
Apart from the above, modern intraocular lenses also reduce eye aberrations and
protect the retina from ultraviolet (UV) radiation and the toxicity of blue light that are important
factors to be taken care of in visual health.