OCULAR COHERENCE TOMOGRAPHY
The optic nerve and nerve fiber layer are viewed and analyzed to detect abnormalities, and early stages of glaucoma can be evaluated and monitored for progression over several visits. The central retina or macula is important because the photoreceptors responsible for detecting fine detail known as cones are located here. The OCT can digitally reconstruct the macula since light is reflected differently as it passes through each layer and is analyzed by the instrument. This instrument is important in aiding diagnosis of macular holes, macular degeneration and diabetic retinopathy. Diabetic macular edema is difficult to diagnose without this instrument.