Accommodation power determined with transient pattern VECPs in diabetes
Yamamoto, S.; Adachi-Usami, E.; Kuroda, N.; Katoh, E.
Nippon Ganka Gakkai Zasshi 92(8): 1359-1362
1988
ISSN/ISBN: 0029-0203 PMID: 3195392 Document Number: 319785
The accommodation power was measured with pattern reversal visually evoked cortical potentials (PVECPs) in 32 patients suffering from diabetes mellitus. Transient PVECPs were recorded by increasing minus power lenses at 1D steps in front of the eye, up to the point where no PVECP was recordable. The amplitude of the P100 component was attenuated linearly to increased accommodative stimulus. The regression line was calculated and the accommodation power was determined by extrapolating the line to O.mu.V amplitude. The obtained accommodation measured with PVECPs attenuated significantly in diabetics. Remarkale delays of P100 peak latencies were also observed.