Eric Dai MD, Pawan Prasher MD, James McCulley MD, R. Wayne Bowman MD.

Slides:

Advertisements

Similar presentations

Corneal morphology in Epithelial Basement Membrane Dystrophy: A large cross-sectional study with in vivo confocal microscopy Johan Germundsson M.D, Per.

Advertisements

Incidence of Blepharitis in Patients Undergoing Phacoemulsification Jodi Luchs, MD Carlos Buznego, MD William Trattler, MD The authors of this poster have.

Swept Source Optical Coherence Tomography for Evaluation of Posterior Corneal Changes after Refractive Surgery Dr. Tommy Chung Yan Chan Dr. Vishal Jhanji.

Department of Ophthalmology, University Hospital Ayr, Scotland

Astigmatism “NO TOUCH” PROCEDURE

PRK Enhancement with Mitomycin - C after LASIK - a case series

Contrast-Enhanced Corneal Wound Imaging by Optical Coherence Tomography Preeya K. Gupta, MD Justis P. Ehlers, MD Terry Kim, MD Duke Eye Center, Durham,

Repeatability of Anterior and Posterior Corneal Higher- Order Aberrations in 4 mm, 6 mm and 8 mm diameters measured by Pentacam System Jadwiga Wojtowicz.

Dr. K.S.SIDDHARTHAN Aravind Eye Hospital Coimbatore

Somasheila I. Murthy, Prashant Garg, Pravin K. Vaddavalli

Dept. of Ophthalmology, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany. Outcome after big-bubble deep anterior lamellar keratoplasty.

Evaluation of Corneal Parameters and Spherical Aberration After DSAEK Measured with Pentacam System Orkun Muftuoglu, Pawan Prasher, R. Wayne Bowman, Steven.

Evaluation of Interface Reflectivity and Corneal Aberrations following DSAEK Hamid Khakshoor, MD Professor of Ophthalmology Mashhad University of Medical.

Evaluation of Zonal Equivalent Keratometry Readings After LASIK Timmy Kovoor, MD Orkun Muftuoglu, MD V.Vinod Mootha, MD Steven Verity, MD R. Wayne Bowman,

Urrets-Zavalia Syndrome Following Descemet Stripping Endothelial Keratoplasty Claire Y. Chu, MD Pawan Prasher, MD Eric Dai, MD R. Wayne Bowman, MD V. Vinod.

The authors have no financial interest in the subject matter of this poster Yinfei Xu, Peter S. Hersh, MD, David S. Chu, MD Institutional Affiliations.

Ocular Pathology Case Presentation Kristin Rarey, M.D. February 2010.

Postoperative Visual Acuity in Patients With Fuchs Dystrophy Undergoing Descemet Membrane–Stripping Automated Endothelial Keratoplasty: Correlation With.

Effect of CXL on FS laser Channel Creation for ICR in KC Tamer M. El-Raggal, MD, PhD, FRCSEd Associate Professor of Ophthalmology Ain Shams University,

Case Report of Severe Haze After DSAEK

Deep anterior lamellar keratoplasty in children World Cornea Congress April 2010 Boston, MA Asim Ali, MD, FRCSC University of Toronto Hospital for Sick.

Michael A. Morris, MD PGY-3 Ophthalmology Resident Scott & White Eye Institute Temple, TX  Authors have no financial interests.

Metallic Foreign Body Embedded in the Posterior Lens Capsule Helen R. Moreira, MD; Michele S. Todman, MD; Paul J. Botelho, MD Division of Ophthalmology,

Epithelial Ingrowth Following Endothelial Keratoplasty Ritika Dalal, DNB Robert S. Feder, MD, Irving Raber, MD, Steven P. Dunn, MD, Robert Weisenthal,

Clinical outcome of DALK in Keratoconus – A one year follow up

Confocal scan study of corneal grafts following Descemet-on versus Descemet-off deep anterior lamellar keratoplasty Zare M, Feizi S, Rezaie M, Hoseini.

Biomechanical and Optical Behavior of Human Corneas Before and After Photorefractive Keratectomy Anna Pandolfi, Politecnico di Milano, Italy Paolo Sanchez,

King Saud University College of Medicine

SALK IN REFRACTIVE SURGERY INDUCED CORNEAL OPACITY- A VIABLE OPTION Anita Ganger, Radhika Tandon, Murgesan Vanathi Cornea & Ocular Surface Services, Dr.

Evaluation of Corneal Tomography in Primary Pterygium Sahil Goel, MD (Presenting Author), Murugesan Vanathi MD *The authors have no financial interests.

Deep Anterior Lamellar Keratoplasty (DALK) Vs Penetrating Keratoplasty (PK) in patients with Keratoconus (KC). Dr. K.S.SIDDHARTHAN Aravind Eye Hospital.

Comparison of Central Corneal Thickness, Anterior Chamber Depth, and Central Corneal Power Measurements between Two Scheimpflug Imaging Systems Yuichi.

Corneal edema following Photorefractive Keratectomy (PRK) Gerald W Zaidman, MD, FAAO,FACS Professor of Ophthalmology Sarah E. Eccles Brown, BA Westchester.

Long Term Results of Femtosecond Laser-Assisted Sutureless Anterior Lamellar Keratoplasty “FALK” Mohamed Abou Shousha, MD, Sonia H. Yoo, MD, William Feuer,

Endoscopic Management of Displaced IOL Causing Recurrent Hyphema in Patient With Pseudoexfoliation J. M. Rouse, M. A. Khaimi Dean McGee Eye Institute,

Influence of Corneal Opacity on Visual Acuity After Cataract Surgery Santaro Noguchi Syunji Yokokura Megumi Uemastu AkiraKubota Koji Nishida Department.

The authors have no conflicting interest in the subject matter of this poster. In Vivo Evaluation of DSAEK Interface with Scanning- Laser Confocal Microscopy.

Descemet’s Stripping Endothelial Keratoplasty (DSEK) in patients with prior Trabeculectomy or Tube shunt surgery. Thadani S.M. Fynn-Thompson N. Authors.

Changes of Axial Length After LASIK Surgery: A 3-Year Follow-Up Study

Varsha Rathi DO, P K Vaddavalli MS, S Murthy MS, V S Sangwan, MS

Comparison of Endothelial Cell Loss After Phacoemulsification Performed by Third Year Residents and Anterior Segment Surgeons Alexandra Braunstein, MD.

Clinical applications of Scheimpflug imaging in cataract surgery

Corneal Pachymetry in Prediction of Refraction After Cataract Surgery

Wavefront Optimized Retreatment after Prior Wavefront

Copyright © 2002 American Medical Association. All rights reserved.

Corneal High-Order Aberrations in Keratoconus

Collagen Cross-Linking in Early Keratoconus: Before and After

Comparison of Single-Scheimpflug and Dual-Scheimpflug Pachymetry Measurements and Effect of Decentration World Cornea Congress VI April 7-9, 2010.

Nienke Visser, Tos T.J.M. Berendschot, Rudy M.M.A. Nuijts

Early Experience with Descemet’s Stripping Automated Endothelial Keratoplasty Combined with Phacoemulsification: Clinical and Refractive Outcome University.

Maayan E. Keshet, M.D. Maggie B. Hymowitz, M.D. John J. Kim, M.D.

Corneal Epithelial Healing After LASIK Surgery

Hong A, Boehlke CS, Afshari NA, Kim T Duke University Medical Center

Three-Year Follow-up after LASIK in Eye with Extremely Thin Corneal Bed Hidemasa Torii, MD, Kazuno Negishi, MD, Murat Dogru, MD, Takefumi Yamaguchi, MD,

Vicente J. Correa-Gomez MD, Guillermo Tapia MD, Oscar Macias Manuel MD, Alejandro Navas Perez MD, Gilberto Islas MD, Tito Ramírez-Luquin MD, Enrique O.

Roxana Ursea, MD Matthew T. Feng, MD Ovette Villavicencio, PhD

Topical and Subconjunctival Bevacizumab in Corneal Neovascularization in Keratoplasty Patients Vladimir Pfeifer, Petra Schollmayer, Špela Štunf, Alenka.

Traumatic Wound Dehiscence After Corneal Keratoplasty

DARIUSZ DOBROWOLSKI¹, EDWARD WYLĘGAŁA¹ ², DOROTA TARNAWSKA¹

Jonathan M. Davidorf, MD Los Angeles, CA ASCRS Annual Meeting

Terrien’s Marginal Degeneration: Clinical Characteristics and Outcomes

New 3-Dimensional Scheimpflug Analysis of Cataract Density

Lasik decentration with the VISX ActiveTrak™ System

Satisfaction Survey of Presbyopic LASIK Patients Up to 11 Years Postop

I.J.E van der Meulen1, C.P. Nieuwendaal1,

University of Texas Southwestern Medical Center at Dallas, Texas

John C. Hwang, MD MBA Edward S. Harkness Eye Institute

Shorter Duration, Higher Ultraviolet A Irradiation (UVA) Fluence Collagen Cross-linking (CCL) for Keratoconus (KCN) Frank A. Killian, MD and A. John Kanellopoulos,

The Effect of Corneal Thickness on Ocular Drug Penetration

I-Chan Lin MD, Paul P. Lee MD, JD

Presentation transcript:

Eric Dai MD, Pawan Prasher MD, James McCulley MD, R. Wayne Bowman MD. Corneal Densitometry Measurement After Deep Anterior Lamellar Keratoplasty by Oculus Pentacam Eric Dai MD, Pawan Prasher MD, James McCulley MD, R. Wayne Bowman MD. The University of Texas Southwestern Medical Center, Dallas, TX.

Commercial Support Disclosure The authors do not have any financial arrangements or affiliations regarding the products and technology used in this study.

Purpose To correlate changes in corneal densitometry values from Oculus Pentacam with clinical slit lamp examination after deep anterior lamellar keratoplasty (DALK).

Methods Pentacam images and slit lamp photographs were performed in nine eyes of nine patients at various intervals during the postoperative course after DALK. Nine eyes of nine patients with no prior corneal surgery served as controls. The values for peak anterior stromal density and posterior stromal density at the level of the graft interface along the 180 degree axis were chosen for analysis. These values were subsequently correlated with clinical grading of interface haze using previously published guidelines1.

Clinical Grading of Interface Haze1 Grade 0 for a completely clear cornea Grade 0.5 for trace haze seen with careful oblique illumination with slit-lamp biomicroscopy Grade 1 for more prominent haze not interfering with visibility of fine iris details Grade 2 for mild obscuration of iris details Grade 3 for moderate obscuration of the iris and lens Grade 4 for completely opacification of the stroma

Results – Control Group Pentacam Values Patient Number Anterior Corneal Densitometry Value Posterior Corneal 1 31.4 23.4 2 24.3 21.2 3 26 20.2 4 25.3 18 5 24.5 19.5 6 30.7 18.2 7 29.4 20 8 25.4 19.8 9 24.8 18.1

Results – Study Population Patient No. Age Operated Eye Duration from surgery to Pentacam Exam (days) Anterior Corneal Densitometry Value Posterior Slit Lamp Interface Haze Grade 1 39 OD 146 35.7 42.7 3 2 41 OS 117 52.9 27.6 0.5 33 87 39.2 23.6 4 20 253 38.3 69.2 5 25 143 40.8 66.3 6 40 13 68.7 34.1 7 64 34 58.5 45.7 8 28 216 34.5 27.1 9 76 57.8

Results Study Group Mean Standard Deviation Average Post Op Duration (Days) 121 79 Average Anterior Densitometry 47 12 Anterior Densitometry Range 34.5 to 68.7 Average Posterior Densitometry 41 17 Posterior Densitometry Range 23.6 to 69.2 Control Group Mean Standard Deviation Average Anterior Densitometry 27 3 Anterior Densitometry Range 24.3 to 31.4 Average Posterior Densitometry 20 2 Posterior Densitometry Range 18 to 23.4

Results On slit lamp examination, interface haze varied from grade 0.5 to 3 in the study group. Both anterior and posterior stromal densitometry values in the DALK patients were significantly greater than in the control group (p<0.01).

Patient No. 2 – Grade 0.5 Haze

Patient No. 2 – Grade 0.5 Haze

Patient No. 9– Grade 2 Haze

Patient No. 9– Grade 2 Haze

Patient No. 1 – Grade 3 Haze

Patient No. 1 – Grade 3 Haze

Conclusion Corneal densitometry values obtained by the Oculus Pentacam were signifcantly higher in patients with interface haze after DALK. Corneal densitometry appears to correlate with subjective assessment of corneal interface haze by clinical slit lamp examination in patients undergoing DALK. The Pentacam may be a useful tool to quantify interface haze in the post operative course of DALK. Additional study in a larger patient population is needed to further evaluate the utility of the Pentacam in grading interface haze.

References Fantes FE, et. al. Wound healing after excimer laser keratomileusis (photorefractive keratectomy) in monkeys. Arch Ophthalmol. 1990 May;108(5):665-75.