Dynamics of human voluntary accommodation.
Voluntary and reflex accommodation were measured monocularly in five normal subjects using a dynamic infrared optometer. Comparison of the peak velocity/amplitude relation (i.e., "main sequence") showed complete overlapping of the response distributions, suggesting similarity of motoneuronal controller signals for voluntary and reflex accommodation. Voluntary accommodation may represent a preprogrammed maneuver used in a variety of real-life predictable situations to optimize performance. Clinically, it may represent an important component in the training of accommodation dynamics.
Ciuffreda
K J
KJ
Schnurmacher Institute for Vision Research, Department of Vision Sciences, State University of New York/State College of Optometry, New York.
Kruger
P B
PB
D000065:Accommodation, Ocular; D000328:Adult; D006801:Humans; D009907:Optometry / Q000295:instrumentation; D012018:Reflex; D014836:Volition