{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,9]],"date-time":"2026-03-09T23:51:43Z","timestamp":1773100303355,"version":"3.50.1"},"reference-count":21,"publisher":"Springer Science and Business Media LLC","issue":"S1","license":[{"start":{"date-parts":[[2021,6,1]],"date-time":"2021-06-01T00:00:00Z","timestamp":1622505600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2021,6,1]],"date-time":"2021-06-01T00:00:00Z","timestamp":1622505600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"DOI":"10.13039\/501100005690","name":"Universit\u00e4t des Saarlandes","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100005690","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Ophthalmologe"],"published-print":{"date-parts":[[2022,1]]},"abstract":"<jats:title>Zusammenfassung<\/jats:title><jats:sec>\n                <jats:title>Hintergrund und Zielsetzung<\/jats:title>\n                <jats:p>Die Aniseikonie als m\u00f6gliche Ursache asthenopischer Beschwerden tritt bei der modernen Kataraktchirurgie oft in den Hintergrund. Ziel der vorliegenden Arbeit ist es, dem Kliniker ein einfaches Berechnungsmodell an die Hand zu geben, mit dem der Abbildungsma\u00dfstab des pseudophaken Auges abgesch\u00e4tzt werden kann.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Methoden<\/jats:title>\n                <jats:p>Das Berechnungsschema f\u00fcr den Abbildungsma\u00dfstab des pseudophaken Auges bezieht sich auf die formelbasierte (vergenzbasierte) Berechnung der Intraokularlinse mit theoretisch-optischen Formeln. Aus den biometrischen Gr\u00f6\u00dfen, die in der Regel f\u00fcr beide Augen bei der Linsenberechnung vorliegen, kann aus den Vergenzen vor und hinter den 3\u00a0oder 4\u00a0refraktiven Grenzfl\u00e4chen im pseudophaken Augenmodell der Abbildungsma\u00dfstab f\u00fcr Objekte im Unendlichen oder in einer endlichen Messdistanz ermittelt werden.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Ergebnisse<\/jats:title>\n                <jats:p>Bei der formelbasierten Berechnung wird ein pseudophakes Augenmodell mit 3\u00a0bzw. 4\u00a0refraktiven Grenzfl\u00e4chen (postoperative Brillenrefraktion; d\u00fcnne Hornhaut, beschrieben durch die Vorderfl\u00e4che, bzw. dicke Hornhaut, beschrieben durch die Vorder- und R\u00fcckfl\u00e4che; Intraokularlinse) definiert und mit den Methoden der linearen Optik die Vergenz vor und hinter jeder Grenzfl\u00e4che bestimmt. Der Quotient aus dem Produkt der Vergenzen vor den Grenzfl\u00e4chen und dem Produkt der Vergenzen unmittelbar hinter den Grenzfl\u00e4chen beschreibt direkt den Abbildungsma\u00dfstab des Auges. Aus dem Vergleich des Abbildungsma\u00dfstabs beider Augen kann unmittelbar der retinale Bildgr\u00f6\u00dfenunterschied ermittelt werden. Exemplarisch wird dies anhand der Haigis- und Hoffer-Q-Formel (3\u00a0Fl\u00e4chen) und der Castrop-Formel (4\u00a0Fl\u00e4chen) gezeigt.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Schlussfolgerungen<\/jats:title>\n                <jats:p>Wird bei der Planung der Kataraktoperation die Biometrie und Linsenberechnung an beiden Augen durchgef\u00fchrt, so kann mit einfachen Mitteln der Abbildungsma\u00dfstab bei beiden Augen und aus dem Vergleich beider Augen die Aniseikonie des pseudophaken Patienten ermittelt werden. Eine derartige Absch\u00e4tzung sollte fester Bestandteil der Linsenberechnung werden, um m\u00f6gliche asthenopische Beschwerden nach der Kataraktoperation fr\u00fch zu erkennen.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1007\/s00347-021-01412-6","type":"journal-article","created":{"date-parts":[[2021,6,1]],"date-time":"2021-06-01T16:18:59Z","timestamp":1622564339000},"page":"56-63","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Einfaches Verfahren zur Absch\u00e4tzung des postoperativen Abbildungsma\u00dfstabs und der Aniseikonie bei der Kataraktoperation","Simple method to estimate object to image magnification and aniseikonia following cataract surgery"],"prefix":"10.1007","volume":"119","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9175-6177","authenticated-orcid":false,"given":"Achim","family":"Langenbucher","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peter","family":"Hoffmann","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jascha","family":"Wendelstein","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"N\u00f3ra","family":"Szentm\u00e1ry","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2021,6,1]]},"reference":[{"key":"1412_CR1","first-page":"625","volume":"14","author":"SN Fyodorov","year":"1975","unstructured":"Fyodorov\u00a0SN, Galin\u00a0MA, Linksz\u00a0A (1975) Calculation of the optical power of intrao-cular lenses. 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