Vouchers to Increase Uptake of Already Free Eye Care
Completed · Not applicable
Conditions studied: Glaucoma, Eye Diseases
In brief
This study was intended to test if reframing an offer for a free follow-up eye examination could increase uptake within ongoing community-based screening program for low-income and minority populations in Baltimore City. This study evaluated the effect of offering participants a physical voucher they were told was redeemable for free follow-up, relative to simply telling participants that the follow-up appointment would be free of charge. The investigators assessed two forms of vouchers, one with estimated value information, and one without. The underlying hypothesis was that reframing these already free offers would increase uptake by increasing perceived offer value and increasing a sense of regret from not taking advantage of a "good deal."
Key facts
- Study ID
- NCT04426331
- Run by
- Johns Hopkins University
- People needed
- 739
- Starts
- 2017-05-05
- Expected to finish
- 2019-01-01
- Last updated by the study team
- 2020-06-16
Who can join
Age: 50 and older. Sex: any. Healthy volunteers: accepted.
You may qualify if…
- Referred for follow-up at a Screening to Prevent Glaucoma (SToP) study screening event (overarching observational study from which trial sample was drawn). SToP participants were referred for follow-up for any of the following conditions: (1) VA worse than 20/40 in at least 1 eye despite autorefraction; (2) signs of retinal abnormalities on fundus photography; (3) uninterpretable fundus photography; (4) cup-to-disc ratio (CDR) greater than or equal to 0.9, and/or CDR between 0.7 and 0.9 with visual field defects or history of glaucoma; and (5) IOP of 23 mm Hg or greater.
You may not qualify if…
- SToP participants who were not referred at the time of screening but later contacted after review of fundus photography
- SToP participants who were referred for follow-up but stated at the time of counseling that they were already under the care of an eye doctor
Where it is running
- Johns Hopkins Hospital - Wilmer Eye Institute — Baltimore, Maryland, United States
Full record on ClinicalTrials.gov
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