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Rotational stability and capsular bag performance of a blue light-absorbing hydrophobic acrylic single piece intraocular lens

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Session Details

Session Title: Rotational Stability & Outcomes

Session Date/Time: Monday 24/09/2018 | 14:30-16:00

Paper Time: 14:36

Venue: Room A4

First Author: : M.Ullrich AUSTRIA

Co Author(s): :    J. Hienert   A. Fisus   K. Kefer   C. Pilwachs   N. Hirnschall   O. Findl     

Abstract Details


To evaluate the rotational stability and capsular bag performance of a new blue light-absorbing hydrophobic acrylic posterior chamber single piece intraocular lens (IOL) during the first 6 postoperative months.


Vienna Institute for Research in Ocular Surgery, A Karl-Landsteiner-Institute, Hanusch Hospital, Vienna, Austria.


In this study, patients with age-related cataract and potential postoperative best-corrected visual acuity (BCVA) of 0.63 decimal or better were included. Patients requiring an IOL power outside the range of 15.0 to 27.0 dioptres were excluded. Patients received a single piece non-toric hydrophobic acrylic IOL with an axis mark (YST0.00; Nidek). One hour, 1 week and 6 months after surgery, retroillumination photographs were obtained to assess the rotational stability of the IOL. At 6 months purkinje meter measurements (Murcia, Spain) were performed to evaluate tilt and decentration. Further secondary endpoints were distance BCVA and adverse events.


100 eyes of 77 patients were included in this study. Mean age was 71.7 years ranging from 51 to 89 years. The mean absolute rotation was 2.1 degrees (standard deviation, 1.7) at 6 months (1h – 6 months postoperatively). IOL rotation was less than 3 degrees and less than 6 degrees in 74% and 98% of all cases, respectively. 98% achieved a BCVA of 0.63 or better, 95% of 0.8 and 81% of 1.0 or better. Mean tilt (axis pupil) and decentration were 4.1 degrees (SD 1.9) and 0.35 mm (SD 0.17) respectively (n=84).


The new YST0.00 hydrophobic acrylic single piece IOL shows good rotational stability, good post-operative BCVA and good safety results. Tilt and decentration results are comparable to those of modern IOLs.

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