The Eyhance intraocular lens and the Eyhance Toric II intraocular lens are made by Johnson & Johnson and are used to replace the cataract during cataract surgery. These lenses give patients an increased range of vision without using glasses, and do not compromise night vision.
With a standard monofocal intraocular lens, patients are typically able to see clearly far away without glasses. The inability to also see intermediate distances or close objects clearly without bifocals or reading glasses is known as presbyopia.
Multifocal and trifocal intraocular lenses treat presbyopia by using rings with different focusing powers. The patient sees through the varying rings simultaneously and the varying distances all appear clear. At night, these rings could potentially cause glare or halos around distant lights.
The Eyhance intraocular lens creates its range of vision by using a proprietary surface design that does not utilize rings. The power on the front surface of the lens gradually changes from the periphery to the center. This gradual change in power results in its seamless range of vision.
Although it is very similar to a Vivity intraocular lens, the Vivity intraocular lens is labelled as an extended depth of field lens, whereas the Eyhance intraocular lens is technically classified as a monofocal lens with an increased range. Clinically, this increased range typically allows patients to see the distance to computer range without glasses. However, it is variable, with some patients seeing the computer range less well, and others achieving even good near vision.
Because the Eyhance intraocular lens does not have rings, the quality of the night vision will be similar to that of a monofocal intraocular lens, the gold standard for night vision. The Eyhance intraocular lens is also very forgiving with regards to ocular pathology, and is appropriate to be used in patients with conditions such as dry eyes or mild macular degeneration.
When you come in for your cataract consultation here at the San Jose Eye Institute, we can discuss whether the Eyhance intraocular lens is best suited for your individual needs.