Clinical Trials Logo

Clinical Trial Summary

In July 2016, the FDA approved an extended depth of focus (EDOF) IOL (Tecnis Symfony, Abbott Medical Optics) helping to improve the sharpness of vision at near, intermediate and far distances reducing the need of glasses after cataract surgery. It is available in both a non-toric version and a toric version for patients with astigmatism. The difference between this lens and the multifocal (MIOL) counterpart is that the EDOF, similarly to a monofocal IOL, has one focal point (elongated in the EDOF) while the multifocals have 2 focal points; therefore, having less of a halo and glare problem. Pivotal trial results where Symfony was compared to a monofocal IOL showed similar uncorrected distance visual acuity (UCDVA), better intermediate (77% vs. 34% 20/25 uncorrected intermediate visual acuity - UCIVA) and near vision (Symfony patients were able to read two additional, progressively smaller lines compared to the monofocal IOL).A One potential disadvantage of the EDOF IOL compared to a MIOL is the visual performance at near.B One option to deal with this potential shortcoming is to set the non-dominant eye for a small residual myopic error (-0.50 D)C what is referred to as nano-vision or mini mono-vision.


Clinical Trial Description

n/a


Study Design


Related Conditions & MeSH terms


NCT number NCT03082599
Study type Interventional
Source Carolina Eyecare Physicians, LLC
Contact
Status Completed
Phase N/A
Start date February 17, 2017
Completion date April 3, 2018

See also
  Status Clinical Trial Phase
Completed NCT04297969 - Hyperopia Detection GCK With Glow Fixation
Completed NCT05580575 - Evaluation of Wear Experience With Daily Disposable and Monthly Replacement Toric Contact Lenses N/A
Recruiting NCT04728451 - Spectacle Prescribing in Early Childhood N/A
Completed NCT03684928 - A Bilateral Dispensing Comparison of Comfilcon A Over Senofilcon C Contact Lenses N/A
Recruiting NCT05629078 - Vision and Balance Changes After Bilateral Implantation of Toric IOLs N/A
Completed NCT03779503 - Comparison of Two Daily Disposable Soft Contact Lenses N/A