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Device Allows Imaging of Eye in Glaucoma Patients

Optical coherence tomography device can image drainage angle and structures

MONDAY, June 9 (HealthDay News) -- An optical coherence tomography device allows non-invasive imaging of the drainage angle and its structures in healthy individuals and patients with glaucoma, researchers report in the June issue of the Archives of Ophthalmology.

Sanjay Asrani, M.D., and colleagues from Duke University in Durham, N.C., tested a high-speed anterior segment optical coherence tomography prototype to study details of the anterior chamber drainage angle in six glaucoma patients and six healthy patients.

The researchers found that they were able to visualize Schlemm's canal and the trabecular meshwork in all patients. They were also able to visualize the entire anterior segment, providing configuration details of the iris with respect to the angle, and obtain detailed views of the angle configuration and its structures. The device could also perform volumetric imaging and allowed visualization of part of Schlemm's canal.

"Anterior segment Fourier-domain optical coherence tomography permits detailed non-contact imaging of the angle and its structures, providing a tool to improve our understanding of the pathogenesis of narrow-angle glaucoma," Asrani and colleagues conclude.

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