Smartphone test of pupil response after cannabis use
Treatments studied
Part of Brain & nervous system, Eyes & vision clinical trials.
This study uses a smartphone app to measure how your pupils react to light after using cannabis. It aims to see if the app can detect recent cannabis use, which could help develop a quick, non-invasive test.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You must be 21 years old or older.
- You must use cannabis at least 3 times a month, but no more than 3 times a week.
- You must be willing to stop using cannabis for 3 days before the study visit.
- You cannot be pregnant, breastfeeding, or planning to become pregnant during the study.
- You cannot have any eye or brain conditions that affect your vision or pupils.
- You must be able to arrange safe transportation home after the study visit.
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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