Optical coherence tomography

[seemasri]

This is a non-contact, noninvasive imaging technique which demonstrates the structure of the optic nerve head, retinal nerve fiber layer (RNFL) and ganglion cell complex (GCC) by analyzing the interference patterns of reflected laser light. It is well known that structural RNFL loss precedes the onset of visual field defects, thus OCT is especially useful in helping to diagnose early glaucoma not yet detectable by perimetry.FOR MORE