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Individual IOL Surface Topography Analysis by the WaveMaster Reflex UV
المؤلفون المشاركون
Langenbucher, Achim
Kannengießer, Marc
Janunts, Edgar
المصدر
العدد
المجلد 2013، العدد 2013 (31 ديسمبر/كانون الأول 2013)، ص ص. 1-7، 7ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2013-05-28
دولة النشر
مصر
عدد الصفحات
7
التخصصات الرئيسية
الملخص EN
Purpose.
In order to establish inspection routines for individual intraocular lenses (IOLs), their surfaces have to be measured separately.
Currently available measurement devices lack this functionality.
The purpose of this study is to evaluate a new topography measurement device based on wavefront analysis for measuring individual regular and freeform IOL surfaces, the “WaveMaster Reflex UV” (Trioptics, Wedel, Germany).
Methods.
Measurements were performed on IOLs with increasingly complex surface geometries: spherical surfaces, surfaces modelled by higher-order Zernike terms, and freeform surfaces from biometrical patient data.
Two independent parameters were measured: the sample’s radius of curvature (ROC) and its residual (difference of sample topography and its best-fit sphere).
We used a quantitative analysis method by calculating the residuals’ root-mean-square (RMS) and peak-to-Valley (P2V) values.
Results.
The sample’s best-fit ROC differences increased with the sample’s complexity.
The sample’s differences of RMS values were 80 nm for spherical surfaces, 97 nm for higher-order samples, and 21 nm for freeform surfaces.
Graphical representations of both measurement and design topographies were recorded and compared.
Conclusion.
The measurements of spherical surfaces expectedly resulted in better values than those of freeform surfaces.
Overall, the wavefront analysing method proves to be an effective method for evaluating individual IOL surfaces.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Kannengießer, Marc& Langenbucher, Achim& Janunts, Edgar. 2013. Individual IOL Surface Topography Analysis by the WaveMaster Reflex UV. BioMed Research International،Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-1030440
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Kannengießer, Marc…[et al.]. Individual IOL Surface Topography Analysis by the WaveMaster Reflex UV. BioMed Research International No. 2013 (2013), pp.1-7.
https://search.emarefa.net/detail/BIM-1030440
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Kannengießer, Marc& Langenbucher, Achim& Janunts, Edgar. Individual IOL Surface Topography Analysis by the WaveMaster Reflex UV. BioMed Research International. 2013. Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-1030440
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1030440
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