Dynamic control of ocular disaccommodation: first and second-order dynamics.

Shrikant R Bharadwaj; Clifton M Schor

doi:10.1016/j.visres.2005.06.005

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Dynamic control of ocular disaccommodation: first and second-order dynamics.

Shrikant R Bharadwaj·Clifton M Schor

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Abstract

Velocity and acceleration characteristics provide valuable information about dynamic control of accommodation. We investigated velocity and acceleration of disaccommodation (near-far focusing) from three starting positions. Peak velocity and peak acceleration of disaccommodation increased with the proximity of starting position however for a given starting position they were invariant of response magnitude. These results suggest that all disaccommodation responses are initiated towards a constant primary destination and are switched mid-flight to attain the desired final position. Large discrepancies between the primary destination and desired final position appear to produce overshoots and oscillations of small responses from proximal starting positions.

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Accommodation, Ocular Adult Algorithms Humans Male Models, Biological Optometry Photic Stimulation Reaction Time Journal Article Research Support, N.I.H., Extramural

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Shrikant R Bharadwaj, Clifton M Schor. 2005-07-19. Dynamic control of ocular disaccommodation: first and second-order dynamics.. https://doi.org/10.1016/j.visres.2005.06.005

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