title: Clinical results and higher-order aberrations after 1.4-mm biaxial cataract surgery and implantation of a new aspheric intraocular lens.
abstract: OBJECTIVE
  The purpose of this study was to analyze the clinical outcome and higher-order aberrations (HOAs) after 1.4-mm biaxial microincision cataract surgery (B-MICS) and implantation of a new aspheric intraocular lens (IOL).
  
  
  METHODS
  A total of 157 eyes of 106 patients were enrolled in this prospective, single-center study. The B-MICS (1.4 mm, 26 eyes) was followed by an implantation of a microincision aspheric Incise® IOL MJ14T (Bausch & Lomb, Rochester, N.Y., USA). The control groups consisted of patients operated with 1.8-mm (coaxial MICS, Akreos MI60, 41 eyes), 2.2-mm (small incision cataract surgery, Tecnis ZCB00, 44 eyes) and 2.2-mm (small incision cataract surgery, CT Asphina, 46 eyes) coaxial phacoemulsification with implantation of an aspheric IOL. Intraoperative and postoperative complications, best-corrected visual acuity, HOAs for a 5.0-mm pupil using the iTrace aberrometer (Tracey Technologies, Houston, Tex., USA) and endothelial cell loss were evaluated. The difference among the groups was evaluated by analysis of variance.
  
  
  RESULTS
  In the Incise group, the mean best-corrected visual acuity improved significantly from 0.4 ± 0.27 logMAR preoperatively to 0.05 ± 0.07 postoperatively. The root mean square of total ocular HOAs was measured at 0.419 ± 0.191 µm, spherical aberration was measured at 0.168 ± 0.072 µm and coma was measured at 0.213 ± 0.200 µm. The best-corrected visual acuity (p = 0.097), total ocular HOA (p = 0.630) and coma (p = 0.193) showed no statistically significant difference between the 4 groups.
  
  
  CONCLUSIONS
  The aspheric microincision IOL was safely implanted through a 1.4-mm incision and showed similarly good postoperative outcome in comparison to 1.8- and 2.2-mm coaxial phacoemulsification.
authors.affiliation: Department of Ophthalmology, Charité, Medical University Berlin, Berlin, Germany.
authors.forename: Christoph
authors.initials: C
authors.lastname: von Sonnleithner
authors.forename: Richard
authors.initials: R
authors.lastname: Bergholz
authors.forename: Johannes
authors.initials: J
authors.lastname: Gonnermann
authors.forename: Matthias K
authors.initials: MK
authors.lastname: Klamann
authors.forename: Necip
authors.initials: N
authors.lastname: Torun
authors.forename: Eckart
authors.initials: E
authors.lastname: Bertelmann
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D015350:Contrast Sensitivity / Q000502:physiology; D057108:Corneal Wavefront Aberration / Q000503:physiopathology*; D005260:Female; D006801:Humans; D007431:Intraoperative Complications; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D008297:Male; D008866:Microsurgery / Q000379:methods; D018918:Phacoemulsification / Q000379:methods*; D011183:Postoperative Complications; D011446:Prospective Studies; D011474:Prosthesis Design; D019591:Pseudophakia / Q000503:physiopathology; D014792:Visual Acuity / Q000502:physiology