Measuring How Quickly the Eye Focuses After Sustained Viewing of Close-up Images and Videos
Recruiting
N/A
Interventional Study
Distance Viewing
Prolonged Near Viewing
No Placebo Group
Every participant receives an active treatment — no one gets a placebo.
Healthy Volunteers Welcome
You do not need to have the condition being studied to take part.
At a Glance
- Age
- 18 – 35
- Sex
- Any
- Study type
- Interventional
- Purpose
- Basic Science
- Participants needed
- 20 (estimated)
- Sponsor
- Rochester Institute of Technology · Other
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About This Trial
In this experiment, subjects will view a cross pattern on the screen and be asked to focus their eyes on it. The cross pattern will look like it is moving towards and away from the eye in a back-and-forth motion. As the subjects focus their eyes on the shapes, the investigators will measure the focus of their eyes using a device called a wavefront sensor. This device uses infrared light to measure…
Trial Locations
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Eligibility Criteria
Inclusion Criteria:
* Between 18-35 years of age
* Normal or corrected-to-normal (glasses/contact lenses) vision.
Exclusion Criteria:
* Vision worse than 20/20 while wearing glasses / contact lenses.
* Fragile or loose teeth (participants need to bite a piece of dental clay to stabilize their hea…
Contacts