title: Negative dysphotopsia associated with implantation of the Z9000 intraocular lens.
abstract: Uneventful small-incision cataract surgery was performed in a 70-year-old man and a 62-year-old woman with implantation of a Tecnis Z9000 intraocular lens (IOL) (Pharmacia). No ocular pathology was present in the patients preoperatively. Unsolicited complaints of negative dysphotopsia were made postoperatively, and the symptoms have persisted for more than 1 year in both patients. Symptomatic negative dysphotopsia may be seen in association with the Z9000 IOL.
authors.affiliation: Loma Linda University, Department of Ophthalmology, Loma Linda, California, USA.
authors.forename: Julio
authors.initials: J
authors.lastname: Narváez
authors.forename: Chris S
authors.initials: CS
authors.lastname: Banning
authors.forename: R Doyle
authors.initials: RD
authors.lastname: Stulting
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D019654:Lens Implantation, Intraocular / Q000009:adverse effects*; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D018918:Phacoemulsification; D011474:Prosthesis Design; D012826:Silicone Elastomers; D014786:Vision Disorders / Q000209:etiology*
chemical_list: D012826:Silicone Elastomers