Patients who had cataracts removed or their eyesight corrected with a new type of lens have good vision over all distances without spectacles, according to new research presented at the European Society of Cataract and Refractive Surgeons (ESCRS).
Patients who had cataracts removed or their eyesight corrected with a new type of lens have good vision over all distances without spectacles, according to new research presented at the European Society of Cataract and Refractive Surgeons (ESCRS).
The study, presented at the 43rd ESCRS, being held in Copenhagen, Denmark, evaluated outcomes for around 200 patients in 17 sites in Europe and Asia-Pacific who had surgery to implant the Tecnis PureSee, a purely refractive extended depth of field (EDOF) presbyopia correction intraocular lens (IOL).1
The study looked at visual acuity after surgery: how well the patients could see over far, intermediate and near distances on the logMAR visual acuity charts. It also measured manifest refraction spherical equivalent (MRSE) to quantify the refractive errors of the eye.
Nearly all patients (96%) reported needing glasses ‘none’ or ‘a little of the time’ for distance vision; 93% reported this for intermediate distances, 62% for near distances, and 85% for overall vision.
In addition, the study reported on how patients were managing after surgery in terms of whether or not they needed spectacles for reading, how satisfied they were with their outcomes, and whether they would recommend the lens to others.
Data were available for 238 patients at the time of the Congress, making it one of the biggest studies to report on this type of lens so far. The findings showed that the EDOF presbyopia correction IOL, on average, provided excellent distance, very good intermediate, and functional near vision without glasses, with little refractive error.2
Nearly all patients (96%) reported needing glasses ‘none’ or ‘a little of the time’ for distance vision; 93% reported this for intermediate distances, 62% for near distances, and 85% for overall vision.
For satisfaction with the outcomes, 96% were ‘mostly’ or ‘completely’ satisfied with their distance vision, 94% with intermediate, 73% with near, and 95% with overall vision; 96% would recommend the lens to their family and friends.
The findings were presented at ESCRS by Professor Oliver Findl, Chair of the ESCRS Education Committee, and a consultant eye surgeon and head of the ophthalmology department at Hanusch Hospital, in the Austrian capital of Vienna.
“The PureSee EDOF IOL gave patients excellent distance, very good intermediate and functional near vision, which resulted in high patient satisfaction with less need for spectacles. The data in this study came from several surgical centres throughout Europe and Asia in a ‘real world setting’ outside of the usual clinical trials.
“The category of EDOF IOLs, such as the Tecnis PureSee, are a great alternative to multifocal lenses for patients who wish to be less dependent on spectacles after lens surgery and do not want to take the risk of unwanted optical side effects.”
He said the presbyopia correction IOL used in the study was a “a fully ‘refractive’ IOL, meaning it uses variations in the lens curvature to focus light at a single distance”.
“The surface of the lens is smooth and you don’t see bumps or rings,” said Prof Findl. “This means you have better night vision and don’t see haloes, starbursts, glare, and other visual disturbances that can occur with other lenses.”
References
- Findl F. Spectacle independence and visual outcomes in patients bilaterally implanted with a purely refractive extended depth of focus presbyopia correcting intraocular lens. A multicentre observational study. Free paper session: Extended depth of field IOL. #ESCRS25-FP-2396
- Mean Manifest Refraction Spherical Equivalent (MRSE): +0.01 D ± 0.39 D. Mean logMAR binocular best-corrected visual acuity (BCDVA), distance-corrected intermedia VA (DCIVA) and distance-corrected near VA (DCNVA) were -0.05±0.09, 0.11±0.10, and 0.22±0.16, respectively. Binocularly, 92% of subjects achieved 0.2 logMAR or better DCIVA and 78% achieved 0.3 logMAR or better DCNVA.
