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[Impact of Near Addition on the Optical Quality of Diffractive Multifocal Intraocular Lenses - a Laboratory Study Using an Optical Bench].
- Source :
-
Klinische Monatsblatter fur Augenheilkunde [Klin Monbl Augenheilkd] 2017 Dec; Vol. 234 (12), pp. 1533-1539. Date of Electronic Publication: 2017 Oct 12. - Publication Year :
- 2017
-
Abstract
- Purpose To analyse the optical quality of diffractive multifocal intraocular lenses (IOLs) with different near additions in a laboratory study. Methods We analysed the AcrySof <superscript>®</superscript> IQ ReSTOR <superscript>®</superscript> + 2.5 D SV25T0 (Alcon Laboratories inc., Fort Worth, USA), the AcrySof <superscript>®</superscript> IQ ReSTOR <superscript>®</superscript> + 3.0 D SN6AD1 (Alcon, USA) and the TECNIS <superscript>®</superscript> ZMA00 and ZMB00 (Abbott Medical Optics, USA) with a power of 21D for the distance, using the OptiSpheric <superscript>®</superscript> IOL PRO optical bench (TRIOPTICS, Wedel, Germany). The lenses have a similar optical design but different near additions: The ReSTOR + 2.5 D has a near addition of + 2.5 D, the ReSTOR + 3.0 D has a near addition of + 3.0 D and both TECNIS IOLs have a near addition of + 4.0 D. We evaluated the modulation transfer function area (MTFA) and the Strehl ratio. Additionally the optical qualities of the IOL were compared using USAF (United States Air Force)-Target pictures. Results The MTFA at the far focus (ReSTOR + 2.5 D/ReSTOR + 3.0 D/TECNIS) was 47.85/42.06/33.57. The MTFA was 11.05/9.54/8.60 for intermediate distances. MTFA at the near focus was 20.11/29.50/33.39. The Strehl ratio was 0.48/0.42/0.29 at the far focus, 0.11/0.10/0.09 at the intermediate focus and 0.20/0.30/0.34 at the near focus. The USAF Target pictures correlated with these measurements. Conclusion At the near focus, the TECNIS ZMA00 and ZMB00 performed the best, while the ReSTOR + 2.5 D performed the worst. At the intermediate distance, all IOLs achieved similar results. At the far focus, the ReSTOR + 2.5 D performed the best. Surgeons can choose the right IOL for the patients' individual needs, because a broad range of near additions in diffractive multifocal IOLs is available these days.<br />Competing Interests: Interessenkonflikt: Das David J Apple International Laboratory for Ocular Pathology wird von AMO und Alcon unterstützt.<br /> (Georg Thieme Verlag KG Stuttgart · New York.)
Details
- Language :
- German
- ISSN :
- 1439-3999
- Volume :
- 234
- Issue :
- 12
- Database :
- MEDLINE
- Journal :
- Klinische Monatsblatter fur Augenheilkunde
- Publication Type :
- Academic Journal
- Accession number :
- 29025173
- Full Text :
- https://doi.org/10.1055/s-0043-112860