Eye focus test after close-up screen time
Part of Eyes & vision clinical trials.
This study measures how quickly your eyes refocus after looking at close-up images or videos for a while. It may help researchers understand eye strain from screens.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are between 18 and 35 years old.
- You have normal vision or wear glasses or contacts that give you 20/20 vision or better.
- You do not have fragile or loose teeth, because you'll need to bite gently on a small piece of dental clay to keep your head still.
- You are not currently pregnant, since the test requires sitting still for some time.
- You do not have heart disease or a personal or family history of epilepsy.
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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