Electroretinograms and visual evoked potentials assess laser flash effects in cynomolgus monkeys, suggesting limited disruption to visual processing.
Electroretinograms (ERG's) and visual evoked potentials (VEP's) were recorded from four cynomolgus monkeys in response to a sinusoidally flickering argon laser beam (514 nm) producing a 50‐μm spot on the fovea. Superposition of a 20‐Hz train of six pulses of Qswitched (120 ns) frequency‐doubled neodymium laser light (532 nm) at “safe” exposure energies in 250 ms had no significant effects on the ERG (p > 0.05). The VEP was disrupted significantly (p < 0.001) but demonstrated recovery within 500 ms of the initial pulse. There‐fore, flash effects of pulsed visible lasers at these doses on suprathreshold luminance processing are probably limited only to the exposure period.
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Elmar T. Schmeisser (1985) studied this question.
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