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Thomas R. Lee Center for Ocular Pharmacology

Facilities

Location - The Center is housed in three 650-square-foot laboratories and two 120-square-foot offices, plus administrative space in Lewis Hall, the major medical research building at EVMS. An additional 120- square-foot office is available to house the confocal microscope. The electron microscopy suite is located on the same floor. An AAALAC approved vivarium is housed in the same building; the EVMS library is next door. Clinical facilities are located across the street on the EVMS Medical Center Campus and include facilities for both inpatient and out-patient surgery and follow-up care, both at the Lions Sight and Hearing Center and in ophthalmologists’ private offices.

Equipment - The laboratories are equipped with a surgical suite for small animal surgery, operating instruments, specular microscope, small operating microscope and binocular microscopes, fluorescent microscope, a microtome for preparing frozen sections, HPLC, spectrophotometers, fluorometers, ultracentrifuges, scintillation and gamma counters, digital photography, data logging and analysis, portable slit lamp, laminar flow hood, tissue incubators, refrigerators, and –90 degree C freezers.

Confocal microscope - An ophthalmological confocal microscope manufactured by Advanced Scanning, Ltd., has been requested to permit evaluation, quantitation, and documentation of the projects proposed by our research group. Confocal microscopy has a number of benefits when compared to standard light microscopy. It permits resolution of discrete optical sections through cells, which allows reconstruction of the cell in three dimensions. This is crucial in revealing changes in the integrity of the epithelium and in the relationship of the various cell layers to each other in the cornea and to determine damage in other ocular structures, such as the optic nerve. The ability to determine discrete optical sections also is useful in reducing the blurring caused by light produced out of the focal plane that occurs when fluorescent probes are used. Reduction of this blurring enhances the localization of fluorescent probes, such as those labeled antibodies used for immunocytochemistry and fluorescent microbeads that will be used for determination of aqueous humor flow.

Unlike other high-resolution techniques such as SEM or TEM, confocal microscopy can be performed on living cells, permitting longitudinal studies on the same subject. This particular confocal microscope is unique in that in can be used for both patients and for isolated cells or tissues. To take full advantage of the confocal microscope, it will be used in conjunction with specialized image processing software that will permit reconstruction of 3-D images, determinations of optical haze and the quantitation of antibody labeling and other intracellular probes. A highly sensitive digital camera and computerized data collection system will be used to collect, process, and store these images.

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