title: Correcting high astigmatism with piggyback toric intraocular lens implantation.
abstract: An 86-year-old man presented for cataract surgery with corneal astigmatism of 5.12 diopters (D). After cataract extraction with small-incision techniques, 2 toric plate-haptic silicone intraocular lenses (IOLs) were implanted in the capsular bag, each with a 3.50 D cylinder add (2.30 D at the spectacle plane). Six weeks postoperatively, corneal astigmatism was 3.38 D at 70 degrees and refractive astigmatism was 1.00 D at 20 degrees. Uncorrected visual acuity was 20/40. No IOL rotation was observed. Implantation of piggybacked toric lenses may be a viable option for correcting moderate to high astigmatism.
authors.affiliation: St. Luke's Cataract and Laser Institute, Tarpon Springs, Florida, USA.
authors.forename: James P
authors.initials: JP
authors.lastname: Gills
authors.forename: Michelle A
authors.initials: MA
authors.lastname: Van der Karr
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001251:Astigmatism / Q000150:complications / Q000601:surgery*; D002386:Cataract / Q000150:complications; D002387:Cataract Extraction; D006801:Humans; D019654:Lens Implantation, Intraocular / Q000379:methods*; D007910:Lenses, Intraocular; D008297:Male; D011474:Prosthesis Design; D016896:Treatment Outcome; D014792:Visual Acuity