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doi:10.22028/D291-38771
Titel: | Comparison of 2 modern swept-source optical biometers : IOLMaster 700 and Anterion |
VerfasserIn: | Langenbucher, Achim Szentmáry, Nóra Cayless, Alan Wendelstein, Jascha Hoffmann, Peter |
Sprache: | Englisch |
Titel: | Graefe's Archive for Clinical and Experimental Ophthalmology |
Verlag/Plattform: | Springer Nature |
Erscheinungsjahr: | 2022 |
Freie Schlagwörter: | Optical biometer Swept-source OCT IOLMaster700 Anterion Power vector analysis Intraocular lens power calculation |
DDC-Sachgruppe: | 610 Medizin, Gesundheit |
Dokumenttyp: | Journalartikel / Zeitschriftenartikel |
Abstract: | Purpose To compare biometric measures from 2 modern swept-source OCT biometers (IOLMaster700 (Z, Carl-ZeissMeditec) and Anterion (H, Heidelberg Engineering)) and evaluate the efect of measurement diferences on the resulting lens power (IOLP). Methods Biometric measurements were made on a large study population with both instruments. We compared axial length (AL), central corneal thickness (CCT), anterior chamber depth (ACD), lens thickness (LT) and corneal front and back surface curvature measurements. Corneal curvature was converted to power vectors and total power derived using the Gullstrand formula. A paraxial lens power calculation formula and a prediction for the IOL axial position according to the Castrop formula were used to estimate diferences in IOLP targeting for emmetropia. Results There were no systematic differences between measurements of AL (− 0.0146 ± 0.0286 mm) and LT (0.0383±0.0595 mm), whereas CCT yielded lower (7.8±6.6 µm) and ACD higher (0.1200±0.0531 mm) values with H. With H, CCT was lower for thicker corneas. The mean corneal front surface radius did not difer (−0.4±41.6 µm), but the corneal back surface yielded a steeper radius (−397.0±74.6 µm) with H, giving lower mean total power (−0.3469±0.2689 dpt). The astigmatic vector components in 0°/90° and 45°/135° were the same between both instruments for the front/back surface or total power. Conclusion The biometric measures used in standard formulae (AL, corneal front surface curvature/power) are consistent between instruments. However, modern formulae involving ACD, CCT or corneal back surface curvature may yield diferences in IOLP, and therefore, formula constant optimisation customised to the biometer type is required. |
DOI der Erstveröffentlichung: | 10.1007/s00417-022-05870-9 |
URL der Erstveröffentlichung: | https://link.springer.com/article/10.1007/s00417-022-05870-9 |
Link zu diesem Datensatz: | urn:nbn:de:bsz:291--ds-387719 hdl:20.500.11880/34936 http://dx.doi.org/10.22028/D291-38771 |
ISSN: | 1435-702X 0721-832X |
Datum des Eintrags: | 20-Jan-2023 |
Fakultät: | M - Medizinische Fakultät |
Fachrichtung: | M - Augenheilkunde |
Professur: | M - Univ.-Prof. Dr. Dipl.-Ing. Achim Langenbucher M - Prof. Dr. med. Nóra Szentmáry |
Sammlung: | SciDok - Der Wissenschaftsserver der Universität des Saarlandes |
Dateien zu diesem Datensatz:
Datei | Beschreibung | Größe | Format | |
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s00417-022-05870-9.pdf | 3,18 MB | Adobe PDF | Öffnen/Anzeigen |
Diese Ressource wurde unter folgender Copyright-Bestimmung veröffentlicht: Lizenz von Creative Commons