Related Experiment Video
Updated: Aug 9, 2026

Corneal Confocal Microscopy: A Novel Non-invasive Technique to Quantify Small Fibre Pathology in Peripheral Neuropathies
Published on: January 3, 2011
Contour resolution of the EyeSys Corneal Analysis System
J A Young1, J H Talamo, I M Siegel
1Department of Ophthalmology, Massachusetts Eye & Ear Infirmary, Harvard Medical School, Boston 02114, USA.
Abstract:
We investigated the accuracy of a conventional videokeratography instrument (Corneal Analysis System, EyeSys Laboratories) to measure contour information using specialized software developed by the manufacturer. Seven calibrated spheres were measured and the results tabulated. A contour resolution for all spheres for all reflected rings was found to be +/- 0.0047 mm, representing a 95% confidence interval. This level of resolution is high enough to obtain clinical value from using the EyeSys instrument as a contour measuring device.

