title: [Functional results after implantation of an aspheric, aberration-neutral intraocular lens].
abstract: OBJECTIVE
  The aim of this study was to perform a clinical evaluation of the functional results and quality of vision after implantation of an aspheric, aberration-neutral, monofocal intraocular lens (IOL).
  
  
  METHODS
  47 eyes of 34 patients (median age: 68 years) with cataract were enrolled in this prospective clinical study that had Ethics Committee approval. The C-flex or Superflex aspheric IOL (Rayner, UK) was implanted after phacoemulsification. Follow-up examinations were performed two to four months after surgery including subjective refraction, ETDRS uncorrected (UDVA) and corrected distance visual acuity (CDVA), wavefront analysis, analysis of stray light (C-Quant), contrast sensitivity under different lighting conditions (F. A. C. T.) and a questionnaire.
  
  
  RESULTS
  Two to four months after surgery, median UDVA was 0.08 logMAR (range: 0.64 to - 0.18 logMAR, n = 41). Median CDVA increased from 0.30 logMAR (range: 1.00 to - 0.02 logMAR) preoperatively to - 0.08 logMAR (range: 0.16 to - 0.22 logMAR) postoperatively (n = 47). Median difference between achieved vs. intended (Holladay 1-formula) spherical equivalent was + 0.06 D (range: - 1.06 to + 0.87 D). Median total HOA RMS (6 mm pupil size) was 0.66 µm (range: 0.41 to 1.19 µm). The median spherical aberrations were - 0.36 µm (range: - 0.70 to - 0.17 µm). Analysis of stray light (C-Quant) revealed a median value of 1.21 log(s) (range: 0.79 to 1.57 log[s]).
  
  
  CONCLUSIONS
  The C-flex and Superflex aspheric IOLs provide good and predictable functional results. Patients are not negatively influenced by stray light and show slightly negative spherical aberrations.
authors.affiliation: International Vision Correction Research Centre (IVCRC) und David J Apple International Laboratory for Ocular Pathology, Universitäts-Augenklinik Heidelberg.
authors.forename: R
authors.initials: R
authors.lastname: Khoramnia
authors.affiliation: International Vision Correction Research Centre (IVCRC) und David J Apple International Laboratory for Ocular Pathology, Universitäts-Augenklinik Heidelberg.
authors.forename: A
authors.initials: A
authors.lastname: Fitting
authors.affiliation: International Vision Correction Research Centre (IVCRC) und David J Apple International Laboratory for Ocular Pathology, Universitäts-Augenklinik Heidelberg.
authors.forename: T M
authors.initials: TM
authors.lastname: Rabsilber
authors.affiliation: International Vision Correction Research Centre (IVCRC) und David J Apple International Laboratory for Ocular Pathology, Universitäts-Augenklinik Heidelberg.
authors.forename: B C
authors.initials: BC
authors.lastname: Thomas
authors.affiliation: International Vision Correction Research Centre (IVCRC) und David J Apple International Laboratory for Ocular Pathology, Universitäts-Augenklinik Heidelberg.
authors.forename: G U
authors.initials: GU
authors.lastname: Auffarth
authors.affiliation: International Vision Correction Research Centre (IVCRC) und David J Apple International Laboratory for Ocular Pathology, Universitäts-Augenklinik Heidelberg.
authors.forename: M P
authors.initials: MP
authors.lastname: Holzer
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019544:Equipment Failure Analysis; D005260:Female; D006801:Humans; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D011474:Prosthesis Design; D020127:Recovery of Function; D012030:Refractive Errors / Q000175:diagnosis* / Q000628:therapy*; D016896:Treatment Outcome; D014792:Visual Acuity