1 / 10

Astigmatism, spherical aberration, contrast vision and defocus of 124 MICS cases in a multicentre study

Astigmatism, spherical aberration, contrast vision and defocus of 124 MICS cases in a multicentre study . Jean-Claude Rigal-Sastourné The author of this poster has received travel expense reimbursement from PhysIOL. Purpose

temple
Télécharger la présentation

Astigmatism, spherical aberration, contrast vision and defocus of 124 MICS cases in a multicentre study

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Astigmatism, spherical aberration, contrast vision and defocus of 124 MICS cases in a multicentre study Jean-Claude Rigal-Sastourné The author of this poster has received travel expense reimbursement from PhysIOL ASCRS 2010

  2. Purpose • To evaluate the refractive outcomes in terms of astigmatism, spherical aberration, contrast vision and defocus, of micro-incision cataract surgery after implantation of a micro-incision aspheric intraocular lens. Methods • Prospective multicentre study • 124 eyes implanted with Micro AY (PhysIOL) • Four surgeons performing micro-incision cataract surgery: D. Deidier, G. Lesieur, P. Rozot, JC Rigal-Sastourné • Examinations at 1 week (124 eyes) and 3 month (101 eyes) ASCRS 2010

  3. IOL Features Micro AY lens (PhysIOL) • 25% hydrophilic acrylic • 10.75mm overall diameter • 6.15mm aspheric optic • Blue blocker • 360° square edge • 5° angulation MicroSet injection system • 1.8 to 2.2mm incisions ASCRS 2010

  4. Population • Mean age 73.5 ±8.3 (range 51-89) • 54% female, 46% male • Cataract type: 50.8% nuclear, 20.2% cortical, 16.9% subcapsular Surgery • Topical anaesthesia: 96% • Clear corneal incision: 100% • Bi-axial technique (1 to 1.3mm incision): 74.2% • Co-axial technique (2.2mm incision): 25.8% ASCRS 2010

  5. Results * Mean IOL power: 20.82D (min 12, max 28) ** Unenlarged in all cases but 4 for astigmatism reduction ASCRS 2010

  6. Results Potential post-op BCVA of less than 0.6 were excluded from the study Cylinder less or equal to preop in 72.3% of cases ASCRS 2010

  7. Results ASCRS 2010

  8. Results Defocus curve (n=28) ESCRS 2009

  9. Results Comparison of defocus curve 1.0 0.79 0.95 0.76 0.7 0.75 0.72 0.53 0.50 0.45 0.33 0.4 0.35 0.28 ESCRS 2009 ESCRS 2009

  10. Conclusion Good visual outcomes with low levels of astigmatism, good visual acuity and good contrast vision were observed in this study three months after MICS and implantation of an aspheric micro-incision lens. When aberrometry was performed, most eyes ended with an expected slightly positive balance of spherical aberration. Defocus curves have shown only a slight decrease of depth of focus in comparison to spherical IOLs. No complications were due to the implant: there were no problems during insertion, no IOL deposits and no posterior capsule early opacity. ASCRS 2010

More Related