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Effects of alcohol and marijuana on dynamic visual acuity: I. Threshold measurements |
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| Authors: | Brian Brown Anthony J. Adams Gunilla Haegerstrom-Portnoy Reese T. Jones Merton C. Flom |
| Affiliation: | 1. Smith-Kettlewell Institute of Visual Sciences, 94115, San Francisco, California 2. School of Optometry, University of California, 94720, Berkeley, California 3. Langley Porter Neuropsychiatric Institute, University of California, 94143, San Francisco, California |
| Abstract: | Alcohol and marijuana produce significant dose-related reductions in dynamic visual acuity. Ten subjects participated in a double-blind experiment involving three dose levels of each drug (including placebo). The reduction of DVA produced by alcohol (1.0 ml 95% ethanol/kg body weight) was greater than for marijuana (15 mg Δ-9-tetrahydrocannabinol), and we suggest that this difference was produced by differential oculomotor effects of the two drugs. We have speculated that reduction in DVA under alcohol may be a contributing factor in alcohol-related traffic accidents. |
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