Optical Coherence Tomography helps diagnose Retinal Disorders

A sophisticated new imaging device  enables doctors to see into the innermost areas of the eye without touching the tissue. The OCT – short for Optical Coherence Tomography – is a non-invasive technology used for imaging the retina, the multi-layered sensory tissue that lines the back of the eye. Eye conditions such as macular degeneration, pre-retinal membranes, macular holes or swelling and optic nerve damage can all be visualized by the device. The equipment is considered the world’s most advanced method of detecting eye disease. 

Optical coherence tomography (OCT) is an optical signal acquisition and processing method. It captures micrometer-resolution, three-dimensional images from within optical scattering media (e.g., biological tissue). Optical coherence tomography is an interferometric technique, typically employing near-infrared light. The use of relatively long wavelength light allows it to penetrate into the scattering medium. This creates very high resolution images of the retina in cross-section.

http://en.wikipedia.org/wiki/Optical_coherence_tomography

http://www.octnews.org/

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