Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. If you need assistance understanding the eligibility criteria, please contact the study team.See eligibility criteria
- All adults with normal vision and ability to concentrate for 10 minutes are eligible to participate.
- Worse than 20/40 visual acuity on Snellen testing in either eye (lens correction allowed)