Prager Shell ®

Extending the reach of Ultrasound of UBM


Prager Shell® Product Information:

Instructions for use of the Prager Shell® (PDF)

Guide to the Need for Cleaning of Immersion Biometry Equipment
Microbial Contamination of Immersion Biometry Ultrasound Equipment" (PDF)
Leonardo J. Velázquez-Estades MD, Thomas C. Prager PhD, MPH, David R. Hardten, MD, Audrey Wagner, PhD, Judianne Kellaway, MD. Ophthalmology Vol. 112, No. 5, May 2005

Kit Removal Instructions (PDF)
Storage/Soaking Tray Instructions (PDF)

YouTube links to additional Prager Shell® videos:
Patient Information
Prager Shell® Exam
Kit Removal Instructions

ClearScan® Product Information:

Instructions for use of ClearScan®

Extending the reach of Ultrasound of UBM
Clinical Applications
Videos and Picture Library

Video script available in PDF file format.

Recommended Articles:

Ultrasound Biomicroscopy & Glaucoma Care
Ike Ahmed, M.D., FRCSC, David R. Hardten, M.D., FACS, Roxanne Ursea, M.D.
Ophthalmology Management: January Issue

"Immersion A-scan compared with partial coherence interferometry: Outcomes analysis" (PDF)
Mark Packer, MD, I.H. Fine, MD, R.S. Hoffman, MD, et al.
J Cataract Refract Surgery 2002; 28:239-242

"Fixed Immersion Shell Improves Axial Measurement" (PDF)
Thomas C. Prager, PhD, MPH.
Review of Ophthalmology Jan. 2005; 51-54

"Biometry instruments may be potential reservoir of bacteria and fungi" (PDF)
Leonardo J. Velázquez-Estades, M.D. Thomas C. Prager, PhD, MPH, David R.
Hardten, M.D., et al
Ocular Surgery News, May 2004

Multi-tech Biometry Study of One Eye (PDF)
M Bryan Waldron, CCOA

Glaucoma Today UBM (PDF)
By Nicholas P. Bell, MD, and Kundandeep S. Nagi, MD.

UBM Talk for AAO (PDF)
By Thomas C. Prager, PhD, MPH and Nicholas P. Bell, MD.

Microbial contamination of ultrasound biomicroscopy probes: Evaluation of cross-infection risk (PDF)
Nicholas P. Bell, MD, Aashish Anand, MD, Audrey Wanger, PhD, Thomas C. Prager, PhD, MPH.

How to Succeed With Ultrasound Biomicroscopy (PDF)
By Thomas C. Prager, PhD, MPH.

UBM Exam Methodology
By Thomas C. Prager, PhD, MPH

Patient Positional Effects of Angle Exam