![](https://www.diabetesnews.com/wp-content/uploads/2013/11/green-eye-150x150.jpg)
The technique involves the examination of unmyelinated nerve fibers at high magnification using a laser-scanning corneal confocal microscope to image the subbasal nerve plexus of the patient’s cornea. Increased severity of diabetic peripheral neuropathy is associated with reduced corneal-nerve fiber length and corneal sensitivity.