Florian T A Kretz1, Tamer Tandogan2, Ramin Khoramnia2, Gerd U Auffarth2. 1. International Vision Correction Research Centre & David J Apple International Laboratory for Ocular Pathology of the Department of Ophthalmology, University Hospital Heidelberg, Heidelberg 69120, Germany ; International Vision Correction Research Network (IVCRC.net), Heidelberg 69120, Germany ; Augenklinik Ahaus-Raesfeld-Rheine, Gerl Group, Ahaus 48683, Germany. 2. International Vision Correction Research Centre & David J Apple International Laboratory for Ocular Pathology of the Department of Ophthalmology, University Hospital Heidelberg, Heidelberg 69120, Germany ; International Vision Correction Research Network (IVCRC.net), Heidelberg 69120, Germany.
Abstract
AIM: To evaluate the quality of vision in respect to high order aberrations and straylight perception after implantation of an aspheric, aberration correcting, monofocal intraocular lens (IOL). METHODS: Twenty-one patients (34 eyes) aged 50 to 83y underwent cataract surgery with implantation of an aspheric, aberration correcting IOL (Tecnis ZCB00, Abbott Medical Optics). Three months after surgery they were examined for uncorrected (UDVA) and corrected distance visual acuity (CDVA), contrast sensitivity (CS) under photopic and mesopic conditions with and without glare source, ocular high order aberrations (HOA, Zywave II) and retinal straylight (C-Quant). RESULTS: Postoperatively, patients achieved a postoperative CDVA of 0.0 logMAR or better in 97.1% of eyes. Mean values of high order abberations were +0.02±0.27 (primary coma components) and -0.04±0.16 (spherical aberration term). Straylight values of the C-Quant were 1.35±0.44 log which is within normal range of age matched phakic patients. The CS measurements under mesopic and photopic conditions in combination with and without glare did not show any statistical significance in the patient group observed (P≥0.28). CONCLUSION: The implantation of an aspherical aberration correcting monofocal IOL after cataract surgery resulted in very low residual higher order aberration (HOA) and normal straylight.
AIM: To evaluate the quality of vision in respect to high order aberrations and straylight perception after implantation of an aspheric, aberration correcting, monofocal intraocular lens (IOL). METHODS: Twenty-one patients (34 eyes) aged 50 to 83y underwent cataract surgery with implantation of an aspheric, aberration correcting IOL (Tecnis ZCB00, Abbott Medical Optics). Three months after surgery they were examined for uncorrected (UDVA) and corrected distance visual acuity (CDVA), contrast sensitivity (CS) under photopic and mesopic conditions with and without glare source, ocular high order aberrations (HOA, Zywave II) and retinal straylight (C-Quant). RESULTS: Postoperatively, patients achieved a postoperative CDVA of 0.0 logMAR or better in 97.1% of eyes. Mean values of high order abberations were +0.02±0.27 (primary coma components) and -0.04±0.16 (spherical aberration term). Straylight values of the C-Quant were 1.35±0.44 log which is within normal range of age matched phakic patients. The CS measurements under mesopic and photopic conditions in combination with and without glare did not show any statistical significance in the patient group observed (P≥0.28). CONCLUSION: The implantation of an aspherical aberration correcting monofocal IOL after cataract surgery resulted in very low residual higher order aberration (HOA) and normal straylight.
Authors: Kim W van Gaalen; Steven A Koopmans; Johanna M M Hooymans; Nomdo M Jansonius; Aart C Kooijman Journal: J Cataract Refract Surg Date: 2010-06 Impact factor: 3.351
Authors: Thomas J T P Van Den Berg; L J René Van Rijn; Ralph Michael; Christian Heine; Tanja Coeckelbergh; Christian Nischler; Helmuth Wilhelm; Günther Grabner; Martin Emesz; Rafael I Barraquer; Joris E Coppens; Luuk Franssen Journal: Am J Ophthalmol Date: 2007-07-25 Impact factor: 5.258