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New IOL design more tolerant to dislocation, pupil size
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LISBON, Portugal — A new-concept multifocal IOL offers high tolerance for dislocation and pupil size, according to one speaker.
“Symmetric multifocal lenses can cause problems with quality of vision if not perfectly centered in the eye. The Precizon presbyopic IOL (Ophtec) has a sequential distribution of near and far segments over the optical surface, which maintains a 50-50 ratio also when the IOL is decentered and with different pupil sizes,” Mike P. Holzer, MD, said at the European Society of Cataract and Refractive Surgeons meeting.
The lens is made of hydrophilic acrylic material, has a 6-mm optic, and is spherical aberration neutral, with a 2.75 D near add. It was tested in a prospective, multicenter European trial including 60 patients scheduled for cataract or refractive lens exchange surgery with a follow-up of 3 months.
“The IOL performed well at distance, intermediate and near. The defocus curve showed good functional VA scores at all distances. Thanks to these results, the lens obtained the CE mark last May,” Holzer said.
Contrast sensitivity was comparable to other multifocal lenses. Patients were tested on quality of vision through a 10-item questionnaire. Main issues were halos and glare, causing little to moderate disturbance in about one-third of the patients. Eighty percent of the patients were totally spectacle-independent, the rest of them use spectacles occasionally and only one uses them quite often. – by Michela Cimberle
Reference:
Holzer M. Functional outcomes and patient satisfaction of the new Precizon presbyopic multifocal intraocular lens. Presented at European Society of Cataract and Refractive Surgeons meeting; Oct. 7-11, 2017; Lisbon, Portugal.
Disclosure: Holzer reports he is a consultant to Alcon, Zeiss and Ophtec.