Source:http://linkedlifedata.com/resource/umls/id/C0013854
MSH: Recording of the average amplitude of the resting potential arising between the cornea and the retina in light and dark adaptation as the eyes turn a standard distance to the right and the left. The increase in potential with light adaptation is used to evaluate the condition of the retinal pigment epithelium.,CSP: measurement and interpretation of electrooculograms, which are the electroencephalographic tracings obtained while the subject moves their eyes back and forth between two fixation points.