| Online-Ressource |
Verfasst von: | Jin, Haiying [VerfasserIn]  |
| Holzer, Mike P. [VerfasserIn]  |
| Rabsilber, Tanja Marina [VerfasserIn]  |
| Borkenstein, Andreas [VerfasserIn]  |
| Limberger, Il-Joo [VerfasserIn]  |
| Guo, Haike [VerfasserIn]  |
| Auffarth, Gerd U. [VerfasserIn]  |
Titel: | Intraocular lens power calculation after laser refractive surgery |
Titelzusatz: | corrective algorithm for corneal power estimation |
Verf.angabe: | Haiying Jin, Mike P. Holzer, Tanja Rabsilber, Andreas F. Borkenstein, Il-Joo Limberger, Haike Guo, Gerd U. Auffarth |
E-Jahr: | 2010 |
Jahr: | [January 2010] |
Umfang: | 10 S. |
Fussnoten: | Gesehen am 24.08.2023 |
Titel Quelle: | Enthalten in: Journal of cataract and refractive surgery |
Ort Quelle: | Fairfax, Va. : Soc., 1986 |
Jahr Quelle: | 2010 |
Band/Heft Quelle: | 36(2010), 1 vom: Jan., Seite 87-96 |
ISSN Quelle: | 1873-4502 |
Abstract: | PURPOSE: - To evaluate an algorithm for corneal power estimation in intraocular lens (IOL) power calculation after myopic laser refractive surgery using direct corneal measurements. - SETTING: - International Vision Correction Research Centre, University of Heidelberg, Heidelberg, Germany. - METHODS: - Corneal parameters in normal eyes and eyes of refractive surgery cases were evaluated by rotating Scheimpflug imaging. Corneal optical power (Koptical) calculated by a Gaussian optics formula was simplified as Koptical = Kanterior + K2 (Kanterior = anterior corneal power; Kposterior = posterior corneal power; K2 = Kposterior − Kanterior × Kposterior × corneal thickness/1.376). The variation and change in K2 induced by refractive surgery were analyzed. A corrective algorithm to calculate Koptical using mean K2 (−6.10 diopters [D]), Kcorrective = 1.114 × measured K − 6.10, was derived based on statistical analysis, which was in accordance with the modified Maloney method. The IOL power after refractive surgery was calculated using Kcorrective. - RESULTS: - The mean K2 of normal and post-refractive corneas was −6.10 ± 0.23 D and −6.16 ± 0.17 D, respectively (P = .17). The mean refractive surgery-induced change in K2 was −0.06 ± 0.10 D. The variations in K2 were small (95% confident interval, −6.55 to −5.65 [normal cornea]; −6.48 to −5.70 [pre-refractive]; − 6.49 to −5.83 [post-refractive)]. Using Kcorrective for IOL power calculation in post-refractive cases yielded mean absolute prediction errors of 0.58 ± 0.52 D (Haigis), 0.59 ± 0.49 D (double-K Hoffer Q), and 0.58 ± 0.47 D (double-K SRK/T). - CONCLUSION: - The algorithm that induced low error in corneal power estimation was relatively reliable in IOL calculation after myopic laser refractive surgery. - Financial Disclosure: - No author has a financial or proprietary interest in any material or method mentioned. |
DOI: | doi:10.1016/j.jcrs.2009.07.011 |
URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext: https://doi.org/10.1016/j.jcrs.2009.07.011 |
| Volltext: https://journals.lww.com/jcrs/abstract/2010/01000/intraocular_lens_power_calculation_after_laser.15.aspx |
| DOI: https://doi.org/10.1016/j.jcrs.2009.07.011 |
Datenträger: | Online-Ressource |
Sprache: | eng |
K10plus-PPN: | 1857909771 |
Verknüpfungen: | → Zeitschrift |
Intraocular lens power calculation after laser refractive surgery / Jin, Haiying [VerfasserIn]; [January 2010] (Online-Ressource)