Klinik und Poliklinik für Augenheilkunde Morphology, Accuracy, and Histology of Corneal Flap Cuts Using a 200 kHz Femtosecond Laser Augenklinik, Klinikum.

Slides:



Advertisements
Ähnliche Präsentationen
Verbs Used Impersonally With Dative Deutsch I/II Fr. Spampinato.
Advertisements

Montag den 16.Dezember Lernziel: To begin stage 2 of preparation for speaking assessment.
You need to use your mouse to see this presentation © Heidi Behrens.
Was sind Emotionen? PD Dr Christoph Jäger.
Aktuelle Pressefolien Schiff THB
Nominative and Accusative Case
Universität StuttgartInstitut für Wasserbau, Lehrstuhl für Hydrologie und Geohydrologie Copulas (1) András Bárdossy IWS Universität Stuttgart.
Adjective Endings Nominative & Accusative Cases describing auf deutsch The information contained in this document may not be duplicated or distributed.
 Every part in a sentence has a grammatical function. Some common functions are: - Subject - Verb - Direct object / accusative object - Indirect object.
J. Neymeyer, T. Wülfing, W. Abdul-Wahab Al-Ansari, A. Apostolidis, S
Institut für Angewandte Mikroelektronik und Datentechnik Phase 5 Architectural impact on ASIC and FPGA Nils Büscher Selected Topics in VLSI Design (Module.
Die Fragen Wörter Wer? Was? Wann?.
Stephanie Müller, Rechtswissenschaftliches Institut, Universität Zürich, Rämistrasse 74/17, 8001 Zürich, Criminal liability.
Literary Machines, zusammengestellt für ::COLLABOR:: von H. Mittendorfer Literary MACHINES 1980 bis 1987, by Theodor Holm NELSON ISBN
Akkusativ Präpositionen
3rd Review, Vienna, 16th of April 1999 SIT-MOON ESPRIT Project Nr Siemens AG Österreich Robotiker Technische Universität Wien Politecnico di Milano.
Nachweis von B 0 s -Oszillationen mit dem ATLAS Detektor am LHC B. Epp 1, V.M. Ghete 2, E. Kneringer 1, D. Kuhn 1, A. Nairz 3 1 Institut für Experimentalphysik,
What is a “CASE”? in English: pronouns, certain interrogatives
What is a “CASE”? in English: pronouns, certain interrogatives
Nuklearmedizinsche Klinik und Poliklinik Klinikum rechts der Isar Technische Universität München Image reconstruction, MR-based attenuation correction,
How does the Summer Party of the LMU work? - Organizations and Networks -
type / function / form type of words:
© Crown copyright 2011, Department for Education These materials have been designed to be reproduced for internal circulation, research and teaching or.
© Crown copyright 2011, Department for Education These materials have been designed to be reproduced for internal circulation, research and teaching or.
© Crown copyright 2011, Department for Education These materials have been designed to be reproduced for internal circulation, research and teaching or.
© Crown copyright 2011, Department for Education These materials have been designed to be reproduced for internal circulation, research and teaching or.
Kapitel 4 Grammar INDEX 1.Ordinal Numbers 2.Relative Pronouns and Relative Clauses 3.Conditional Sentences 4.Posessive: Genitive Case.
© Crown copyright 2011, Department for Education These materials have been designed to be reproduced for internal circulation, research and teaching or.
Wort des Tages das Taschengeld a)school bag b)allowance.
EUROPÄISCHE GEMEINSCHAFT Europäischer Sozialfonds EUROPÄISCHE GEMEINSCHAFT Europäischer Fonds für Regionale Entwicklung Workpackage 5 – guidelines Tasks.
Kapitel 2 Grammar INDEX 1.Subjects & Verbs 2.Conjugation of Verbs 3.Subject Verb Agreement 4.Person and Number 5.Present Tense 6.Word Order: Position of.
Kapitel 7 Grammar INDEX 1.Comparison 2.Adjectives 3.Adjective Endings Following Ein-Words.
© Crown copyright 2011, Department for Education These materials have been designed to be reproduced for internal circulation, research and teaching or.
© Crown copyright 2011, Department for Education These materials have been designed to be reproduced for internal circulation, research and teaching or.
Kapitel 8 Grammar INDEX 1.Command Forms: The Du-Command Form & Ihr- Command 2.Sentences & Clauses.
© Crown copyright 2011, Department for Education These materials have been designed to be reproduced for internal circulation, research and teaching or.
Kapitel 9 Grammar INDEX 1.Formal Sie- Command 2.There Is/There Are 3.Negation: Nicht/Klein.
Guten Morgen, Deutsch 1! Heute ist der 30. September. Jetzt: Mach das Kreuzwort! Nimm die Hausaufgaben heraus. Nimm die Hausaufgaben heraus. Später: Lernen.
Debating - the Jugend debattiert way The format - overview How to prepare a debate The opening round The main round The final round How to evaluate a debate.
Sven Koerber-Abe, 2015 Grammatik: müssen, dürfen Grammatik: müssen, dürfen.
Position Sven Koerber-Abe, 2015 ▪ ▪. in Der PC ist in ___ Box.
Dativ Sven Koerber-Abe, 2015.
© Crown copyright 2011, Department for Education These materials have been designed to be reproduced for internal circulation, research and teaching or.
© Crown copyright 2011, Department for Education These materials have been designed to be reproduced for internal circulation, research and teaching or.
Die toten hosen German punk rock band since thirty years With many well known hits.
© 2012 IBM Corporation © 2013 IBM Corporation IBM Storage Germany Community Josef Weingand Infos / Find me on:
On the case of German has 4 cases NOMINATIVE ACCUSATIVE GENITIVE DATIVE.
Sven Koerber-Abe, 2016 Grammatik: Artikel (Zusammenfassung) Grammatik: Artikel (Zusammenfassung)
Mitglied der Helmholtz-Gemeinschaft Questions to HESR 6 th March 2012 PANDA-meetingDieter Prasuhn.
German Stem-Vowel Changing Verbs
Sentence Structure Questions
Cobra 120 Tablets Price In Pakistan
Nicht vs kein… With partner, read page 176 “Negation”… Ask yourself…
The dynamic ultrasound
We need: 1. to be 2. past participle of the predicate/verb
Jetzt machen Venues aufmachen!!! Geh zu
Grammatik: waren / hatten
Dativ Sven Koerber-Abe, 2015.
CERN – TUD – GSI Webmeeting
THE PERFECT TENSE IN GERMAN
Uranus. Uranus is the seventh in terms of distance from the Sun, the third in diameter and the fourth in mass of the planet of the Solar System. It was.
„Förderwolke“ A Cloud-based exchange platform for the qualitative enhancement and improvement of inclusive education Dipl. Reha-Päd. Hanna Linke scientific.
type / function / form type of words:
Official Statistics Web Cartography in Germany − Regional Statistics, Federal and European Elections, Future Activities − Joint Working Party meeting.
The Conversational Past
The Conversational Past
Calorimetry as an efficiency factor for biogas plants?
School supplies.
Grammatik: Position Sven Koerber-Abe, 2013.
 Präsentation transkript:

Klinik und Poliklinik für Augenheilkunde Morphology, Accuracy, and Histology of Corneal Flap Cuts Using a 200 kHz Femtosecond Laser Augenklinik, Klinikum rechts der Isar, Technische Universität München, Munich, Germany All authors have no financial interest in the subject matter of this poster. The laser system used is not FDA approved and does not yet have a CE mark. ASCRS 2010 R. Khoramnia C.P. Lohmann J. Salgado C. Winkler von Mohrenfels

Klinik und Poliklinik für Augenheilkunde 2 Purpose -LASIK requires precise corneal flap cutting. -Especially the creation of thin flaps has recently gained importance for Sub- Bowman keratomileusis (SBK), which requires precise cutting. -There is a tendency towards faster femtosecond lasers that produce flaps more quickly. We analyzed flaps created with a prototype 200 kHz femtosecond laser (UltraFlap; WaveLight AG, Erlangen, Germany) concerning their cut accuracy, morphology, and histology.

Klinik und Poliklinik für Augenheilkunde 3 Material and methods Preparation 36 fresh porcine eyes: Epithelial abrasion Surgery Femtosecond laser flap cutting using the 200 kHz femtosecond laser -> Three thickness groups (100 µm, 130 µm, or 180 µm) -> Flap diameters were varied ranging from 8.0 to 9.5 mm Examination 1.) Flap diameters were measured with a sliding caliper. 2.) Flap thickness was measured with a micrometer gauge (Extramess 2000; Mahr, Esslingen, Germany). Accuracy of this device: 0.3 µm 3.) Histologic examination

Klinik und Poliklinik für Augenheilkunde 4 Results: Flap thickness Accuracy - Statistical analysis: Significant difference between the 130- and 180-μm group (Mann- Whitney-U test; p < 0.05) All other comparisons: No significant differences (Mann- Whitney-U test; p > 0.05). Box-and-whisker plot Mean values: 96.33± ± ±9.35 [µm]

Klinik und Poliklinik für Augenheilkunde 5 Results: Flap diameter Accuracy - Statistical analysis: The deviation between measured and attempted diameters was not significantly different between the four diameters (Kruskal-Wallis test; p > 0.05). Box-and-whisker plot Mean values: 8.03± ± ± ±0.15 mm [mm]

Klinik und Poliklinik für Augenheilkunde Results: Histological examination Histology showed a smooth cut with very little to almost no changes in the corneal structure. (A) A 180-µm flap in the region of the side cut. (B) Stromal bed in the region of the side cut (flap thickness: 100 µm). (C)A 130-µm flap and the stromal bed. H&E staining; original magnification, x20.

Klinik und Poliklinik für Augenheilkunde 7 Conclusions -Flap creation was performed easily without any complications. -Morphology and accuracy of the cuts were very reliable and precise. -Histology showed a smooth cut with very little to almost no changes in the corneal structure. -> Therefore, the 200 kHz femtosecond laser seems to be a promising new device in refractive surgery.

Klinik und Poliklinik für Augenheilkunde 8 CONTACT Klinik und Poliklinik für Augenheilkunde am Klinikum rechts der Isar Ismaninger Str Munich GERMANY SECRETARIAT Tel Fax Internet: