Trifocal Lenses for Cataract Surgery
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 development 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.
Trifocal intraocular lenses surfaced for the 1st time in 2012 and continue to evolve and provide
benefits to patients. Currently, we have 3 trifocal intraocular lenses which include:
An interesting concept is that of intermediate vision, which is a major point of
difference in directing the choice of these lenses compared to the previous multifocal lenses.
The PhysiOL and AT LISA tri have an intermediate focal point at 80 cm, while the PanOptix®
lens has a focal point at 60 cm. Undoubtedly, the intermediate distance of 60 cm is much more
user-friendly (than that of 80 cm) for computer users, allowing greater comfort in performing
medium distance tasks among people who are in the working age or lead an active life
With respect to the pre-surgical astigmatism that our potential patients may have
experienced, we must know that the PhysiOL and AT LISA tri currently have toric options,
which play a significant role in reducing the visual alterations that occur following the surgical
intervention.
Ophthalmol Open J. 2017; 2(1): e7-e8. doi: 10.17140/OOJ-2-e006
