title: Clinical performance of a new aspheric dual-optic accommodating intraocular lens.
abstract: OBJECTIVE
  To describe the clinical performance of a new dual-optic intraocular lens (IOL) with an enhanced optic profile designed to mimic natural accommodation.
  
  
  METHODS
  Prospective multicenter clinical study with the new dual-optic aspheric accommodating IOL (Synchrony Vu) in 74 patients (148 eyes) undergoing cataract surgery. Refractive target was emmetropia. Examinations at 1 month and 6 months included subjective refractions; visual acuities at near, intermediate, and far; mesopic contrast sensitivity with and without glare; safety data; and subjective survey on dysphotopsia (halos and glare).
  
  
  RESULTS
  Clinical data at 6 months showed 89% of the eyes within ±1.0 D spherical equivalent refraction. Mean binocular uncorrected and distance-corrected visual acuity was 20/20 at far (0.00±0.11 logMAR and -0.06±0.08 logMAR, respectively), 20/20 at intermediate (0.01±0.13 logMAR and -0.01±0.10 logMAR, respectively), and 20/25 at near (0.10±0.14 logMAR and 0.14±0.15 logMAR, respectively). Mesopic contrast sensitivity was within normal limits. Seventy-eight percent of the patients had no spectacles and 70% had no dysphotopsia. One eye had IOL repositioning within 1 month of surgery.
  
  
  CONCLUSIONS
  The new aspheric Synchrony Vu accommodating IOL provided good visual performance at a range of distances without affecting quality of vision and with minimal safety considerations.
authors.affiliation: Department of Ophthalmology, Hospital da Cruz Vermelha, Lisboa, Portugal.
authors.forename: Eduardo F
authors.initials: EF
authors.lastname: Marques
authors.affiliation: Visual Sciences Research Centre, Universidade de Lisboa, Portugal.
authors.forename: António
authors.initials: A
authors.lastname: Castanheira-Dinis
keywords: accommodating IOL; cataract surgery; intraocular lens; presbyopia