Functional Results After Implantation of Aspheric Aberration-Neutral IOL

Khoramnia, Ramin

Functional Results After Implantation of Aspheric Aberration-Neutral IOL

Sunday, April 27, 2014: 3:31 PM

Room 150 (Boston Convention and Exhibition Center)

Ramin Khoramnia, MD, David J Apple International Laboratory for Ocular Pathology and International Vision Correction Research Centre (IVCRC), Department of Ophthalmology, University of Heidelberg, Heidelberg, Germany

Anna Fitting, MSc, University of Heidelberg, Heidelberg, Germany

Bettina C. Thomas, MD, International Vision Correction Research Centre (IVCRC), Heidelberg, Germany

Gerd U. Auffarth, MD, David J Apple International Laboratory for Ocular Pathology and International Vision Correction Research Centre, University of Heidelberg, Heidelberg, Germany

Mike P. Holzer, MD, University of Heidelberg, Heidelberg, Germany

Narrative Responses:

Purpose
Clinical evaluation of 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 have been enrolled in this ongoing prospective clinical study so far that was approved by the ethics committee. The C-/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 spherical equivalent was +0.06 D (range: -1.06 to +0.87 D). Median total HOA RMS (6 mm pupil size) was 1.76 µm (range: 0.61 to 5.57 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)).

Conclusion
The C-/Superflex aspheric IOL provides good and predictable functional results after surgery. Patients are not negatively influenced by stray light and show slightly negative spherical aberrations.