Presentation is loading. Please wait.

Presentation is loading. Please wait.

Corneal Wound Architecture and Integrity after OZil and Mixed Phacoemulsification: Evaluation of Standard and Microincisional Coaxial Techniques Bokkwan.

Published byCordelia Bryant Modified over 9 years ago

Similar presentations

Presentation on theme: "Corneal Wound Architecture and Integrity after OZil and Mixed Phacoemulsification: Evaluation of Standard and Microincisional Coaxial Techniques Bokkwan."— Presentation transcript:

1 Corneal Wound Architecture and Integrity after OZil and Mixed Phacoemulsification: Evaluation of Standard and Microincisional Coaxial Techniques Bokkwan Jun MD, John P Berdahl MD, Anthony N Kuo MD, Thomas J Cummings MD, Terry Kim MD Duke University Eye Center Duke University Eye Center Durham, North Carolina Commercial Relationships

2 Purpose  To compare corneal wound architecture and integrity after OZil torsional and mixed ultrasound modalities with various phacoemulsification (PE) power levels  Two different size of incisions Standard (2.75mm) Standard (2.75mm) Microincisional (2.2mm) Microincisional (2.2mm)

3 Methods  Prospective study Twenty human cadaver eyes, Four groups of 5 eyes/group Twenty human cadaver eyes, Four groups of 5 eyes/group Group 1 : 2.75mm, only 100% OZil Group 1 : 2.75mm, only 100% OZil Group 2 : 2.2mm, only 70% OZil Group 2 : 2.2mm, only 70% OZil Group 3 : 2.2mm, only 100% OZil Group 3 : 2.2mm, only 100% OZil Group 4 : 2.2mm, mixed ultrasound modality Group 4 : 2.2mm, mixed ultrasound modality (ultrasound 50% for 10ms; OZil 100% for 60ms, 30ms off) (ultrasound 50% for 10ms; OZil 100% for 60ms, 30ms off)  Phacoemulsification (PE) settings Vacuum: 300mmHg, Aspiration: 12cc/min, Bottle height : 100cm Vacuum: 300mmHg, Aspiration: 12cc/min, Bottle height : 100cm Phacoemulsification time: ~ 45 seconds with full power and simulated 5~10 seconds On/Off occlusion and instrument manipulation Phacoemulsification time: ~ 45 seconds with full power and simulated 5~10 seconds On/Off occlusion and instrument manipulation Tip: Mini-Flared 30° Kelman tip Tip: Mini-Flared 30° Kelman tip Sleeve: MicroSleeve for 2.75mm, UltraSleeve for 2.2mm Sleeve: MicroSleeve for 2.75mm, UltraSleeve for 2.2mm

4  India ink : 2 eyes/group, IOP was varied from 0~125mmHg : 2 eyes/group, IOP was varied from 0~125mmHg Entry of India ink into the wound or aqueous leakage from the wound was recorded Entry of India ink into the wound or aqueous leakage from the wound was recorded  Histopathologic examination of India ink : 2 eyes/group  Optical coherence tomography (OCT) : 3 eyes/group before and after the phacoemulsification before and after the phacoemulsification  Scanning electron microscopy (SEM) : 3 eyes/group Methods

5 Results (Gross observation)  Spontaneous wound leakage (No ingress of India ink) Group 1 : 1/5 eyes Group 1 : 1/5 eyes Group 3 : 0/5 eyes Group 3 : 0/5 eyes Group 2 : 0/5 eyes Group 2 : 0/5 eyes Group 4 : 0/5 eyes Group 4 : 0/5 eyes  India ink demonstration after PE and IOP variation Group 3 Group 4 Group 2 Group 1 2.75mm 100% OZil 2.2mm 100% OZil 2.2mm 70% OZil 2.2mm Mixed U/S

6  No India ink penetrated into the inner wound tract in any of the study eyes Results (Histopathology) Group 3 Group 4 Group 2 Group 1 2.75mm 100% OZil 2.2mm Mixed U/S 2.2mm 70% OZil 2.2mm 100% OZil

7 Results (OCT)  Wound architecture and apposition remained intact in each group after simulated PE without stromal hydration Group 1 Group 3 Group 2 Group 4 2.75mm 100% OZil 2.2mm 70% OZil 2.2mm Mixed U/S 2.2mm 100% OZil

8 Results (SEM, endothelial view)  SEM demonstrated comparable gaping of the internal wound and minimal trauma to DM and corneal endothelium Group 1 Group 2 Group 3 Group 4 2.75mm 100% OZil 2.2mm 70% OZil 2.2mm Mixed U/S 2.2mm 100% OZil

9 Conclusions  No gross differences in corneal wound architecture and integrity was observed among the four treatment groups as confirmed by gross, histopathologic, OCT, and SEM examination.  Torsional and mixed ultrasound settings do not appear to induce any adverse effects on incision integrity in standard and microincisional coaxial OZil and longitudinal ultrasound applications.

Download ppt "Corneal Wound Architecture and Integrity after OZil and Mixed Phacoemulsification: Evaluation of Standard and Microincisional Coaxial Techniques Bokkwan."

Similar presentations

Scanning electron microscopic analysis for the quality of diffractive surface of ReSTOR IOL inserted into anterior chamber Department of Ophthalmology.

Scanning electron microscopic analysis for the quality of diffractive surface of ReSTOR IOL inserted into anterior chamber Department of Ophthalmology.
A prospective, randomized clinical trial

A prospective, randomized clinical trial
TESTUPLOAD. TORSIONAL PHACOEMULSIFICATION In January 2006 Alcon Surgical incorporated Ozil torsional into the Infiniti Vision System. Unlike the conventional.

TESTUPLOAD. TORSIONAL PHACOEMULSIFICATION In January 2006 Alcon Surgical incorporated Ozil torsional into the Infiniti Vision System. Unlike the conventional.
OHM Comparative quantification of ingress of trypan blue into anterior chamber following microcoaxial phacoemulsification with torsional or longitudinal.

OHM Comparative quantification of ingress of trypan blue into anterior chamber following microcoaxial phacoemulsification with torsional or longitudinal.
David Allen Sunderland UK Financial disclosure A & E The author has had travel and lodging costs paid by as well as occasional honoraria from Alcon Surgical.

David Allen Sunderland UK Financial disclosure A & E The author has had travel and lodging costs paid by as well as occasional honoraria from Alcon Surgical.
Endothelium Protection In Phacoemulsification H.R. Ziai MD.

Endothelium Protection In Phacoemulsification H.R. Ziai MD.
The authors have no financial interest in the subject matter of this e-poster. Thomas John, MD 1 Alissa Pullos 1- Loyola University at Chicago.

The authors have no financial interest in the subject matter of this e-poster. Thomas John, MD 1 Alissa Pullos 1- Loyola University at Chicago.
Multicenter evaluation of the safety and efficacy of an ocular sealant after cataract surgery with a premium intraocular lens Y. Ralph Chu 1 Steven J.

Multicenter evaluation of the safety and efficacy of an ocular sealant after cataract surgery with a premium intraocular lens Y. Ralph Chu 1 Steven J.
Early Outcomes of Descemet’s Stripping Automated Endothelial Keratoplasty in Pseudophakic Eyes with Anterior Chamber Intraocular Lenses Preeya K. Gupta.

Early Outcomes of Descemet’s Stripping Automated Endothelial Keratoplasty in Pseudophakic Eyes with Anterior Chamber Intraocular Lenses Preeya K. Gupta.
Authors Waseem Aalam, MD; William May, MD; Sultan Alrashidi, MD; Abdul Elah al Towerki, MD; Rajiv Khandekar, MS, PG Dip; Yassine Daoud, MD The authors.

Authors Waseem Aalam, MD; William May, MD; Sultan Alrashidi, MD; Abdul Elah al Towerki, MD; Rajiv Khandekar, MS, PG Dip; Yassine Daoud, MD The authors.
Quantification of hydroxyl radical during phacoemulsification. Department of Ophthalmology, Dokkyo Medical University (JAPAN) Norihito Gotoh MD PhD, Hiroyuki.

Quantification of hydroxyl radical during phacoemulsification. Department of Ophthalmology, Dokkyo Medical University (JAPAN) Norihito Gotoh MD PhD, Hiroyuki.
Astigmatism Following 2 IOL Injection Techniques: Wound Assisted Versus Wound Directed Jay J. Meyer, MD Hart B. Moss, MD Kenneth L. Cohen, MD University.

Astigmatism Following 2 IOL Injection Techniques: Wound Assisted Versus Wound Directed Jay J. Meyer, MD Hart B. Moss, MD Kenneth L. Cohen, MD University.
Jeffrey Levenson, MD, Levenson Eye Associates Farrell Tyson II, MD, Cape Coral Eye Center William Flynn, MD, Rashid, Rice & Flynn Eye Associates The authors.

Jeffrey Levenson, MD, Levenson Eye Associates Farrell Tyson II, MD, Cape Coral Eye Center William Flynn, MD, Rashid, Rice & Flynn Eye Associates The authors.
Phaco-drainage Phacosection Amporn technique

Phaco-drainage Phacosection Amporn technique
Outcomes of surgery for posterior polar cataract using torsional handpiece Dr. Aysel Pelit, Dr. Yonca A. Akova Baskent University, Faculty of Medicine,

Outcomes of surgery for posterior polar cataract using torsional handpiece Dr. Aysel Pelit, Dr. Yonca A. Akova Baskent University, Faculty of Medicine,
Thermal Imaging Comparison of Longitudinal versus Torsional Phacoemulsification in INFINITI Young Keun Han, M.D., Kevin M. Miller, M.D. Department of Ophthalmology,

Thermal Imaging Comparison of Longitudinal versus Torsional Phacoemulsification in INFINITI Young Keun Han, M.D., Kevin M. Miller, M.D. Department of Ophthalmology,
Contrast-Enhanced Corneal Wound Imaging by Optical Coherence Tomography Preeya K. Gupta, MD Justis P. Ehlers, MD Terry Kim, MD Duke Eye Center, Durham,

Contrast-Enhanced Corneal Wound Imaging by Optical Coherence Tomography Preeya K. Gupta, MD Justis P. Ehlers, MD Terry Kim, MD Duke Eye Center, Durham,
Microcoaxial phaco using 1

Microcoaxial phaco using 1
So-Hyang Chung, MD, PhD, Choun-Ki Joo, MD, PhD Department of Ophthalmology and Visual Science, College of Medicine, The Catholic University of Korea, Seoul,

So-Hyang Chung, MD, PhD, Choun-Ki Joo, MD, PhD Department of Ophthalmology and Visual Science, College of Medicine, The Catholic University of Korea, Seoul,
Transparency of Transition from 2.75 mm to 1.8 mm Microincision Surgery Jay McDonald II, MD Adjunct Clinical Professor University of Arkansas School of.

Transparency of Transition from 2.75 mm to 1.8 mm Microincision Surgery Jay McDonald II, MD Adjunct Clinical Professor University of Arkansas School of.

Similar presentations

Ads by Google