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Please use this identifier to cite or link to this item: http://hdl.handle.net/2328/1001

Title: A simple corneal perfusion chamber for drug penetration and toxicity studies
Authors: Thiel, Michael A
Morlet, N
Schulz, D
Edelhauser, HF
Dart, JK
Coster, Douglas John
Williams, Keryn Anne
Keywords: Diffusion Chambers, Culture
Drug Evaluation, Preclinical
Endothelium, Corneal
Equipment Design
Fluorescein
Immunoglobulin G
Ophthalmic Solutions
Perfusion
Research Support, Non-U.S. Gov't
Issue Date: Apr-2001
Publisher: BMJ Publishing Group - http://bjo.bmjjournals.com/
Citation: Thiel, M.A Morlet, N. Schulz, D. Edelhauser, H.F. Dart, J.K. Coster, D.J Williams, K.A. 2001 A simple corneal perfusion chamber for drug penetration an toxicity studies. 'British Journal of Ophthalmology' Vol. 85, No. 4, 450-453
Abstract: AIMS: Corneal perfusion chambers are important tools in the development and assessment of ophthalmic drugs. The aim of this study was to design and test a modified perfusion chamber suitable for topical application of drugs to isolated corneoscleral preparations, and which allowed continuous monitoring of endothelial cell function. METHODS: A polycarbonate and stainless steel perfusion chamber was designed to clamp corneas in a horizontal plane suitable for topical drug delivery. Endothelial cell function was assessed by ultrasonic pachymetry and specular microscopy during perfusion. Epithelial barrier function was assessed by penetration of fluorescein. Leakage was examined by measuring penetration of a large protein, IgG. Tissue architecture after perfusion was examined by conventional histology. RESULTS: Corneas maintained a functionally and morphologically intact endothelial monolayer during perfusion periods of up to 14 hours. The epithelial barrier function was well preserved. The tissue clamp sealed the preparation effectively against leakage of macromolecules. CONCLUSION: The new chamber device forms a reliable tool for in vitro drug penetration and toxicity studies in isolated perfused corneoscleral tissue.
URI: http://hdl.handle.net/2328/1001
ISSN: 0007-1161
Appears in Collections:Keryn Williams
Doug Coster

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