Advantages of Extended Range Lenses

La Clínica Nivaria It has been a pioneer center for years in Canary Islands in the implant of Extended Range Lenses, which constitute the most advanced technology at the moment at the implant level intraocular. Our medical center decided on this innovative technology for several reasons.

In the first place, for its extraordinary design at the level of optical engineering, which allows to create a continuous focus of functional visual focus (as if in a camera we always worked with the diaphragm very closed, without that really happening). This gives the lenses a great advantage, which is that it does not produce jumps of visual quality in the different distances, giving rise to the patient experiencing a significant rejuvenation in his vision, affected by the inevitable presbyopia, with very low presence of secondary visual symptoms that other lenses present.

Who can implant the Extended Range Lenses?

Although several models are currently being introduced, Symfony® (Johnson & Johnson Vision®) lenses were the first to be available and with the most experience. Although its correct indication depends on the previous study of each patient, we can affirm that the patients most benefited by their implant are those who do not see well at any distance before undergoing surgery. Once the intervention is performed, the patient experiences a significant improvement in distance, intermediate and near vision. But the great advantage is that from the near point where you start to see well to far distances, the patient's vision will have an excellent quality, without jumps as the multifocal lenses currently available on the market suffer. This will cause you to adapt very quickly to the new situation. Very close vision is the slowest to be acquired, but intermediate vision, such as the vision required for mobile phones, books and computers, and distant vision are acquired instantly after surgery.

What are the disadvantages of these lenses?

However, we warn all patients that it is possible that after the operation for vision In great detail, very close elements may require the occasional use of very low-grade resting glasses (a “magnifying glass” diopter), but most do not require it. And in the world of diffractive intraocular lenses, patients who have surgery should know that the correct posterior vision is conferred by the brain and not the eye, just like when you start using progressive glasses, adaptation is sometimes not instant and we must give time to our functional system.

For what type of patients is it indicated?

Although the best performance of this lens occurs in mild or moderate hypermetropic patients, they can also be used in myopic people. But each patient is a different case and we should not only be clear about their characteristics, but their expectations.

These lenses have just been approved in the United States of America, and in a few months they have consolidated as the fastest growing in this sector for their good results and acceptance, something that we have seen for more than two years.

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