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Discover 13,570 clinical trials near Massachusetts. Find research studies in your area.
Showing 4641-4660 of 13,570 trials
NCT05259163
The purpose of this study is to establish if LFR-260 (investigational device) is not inferior in effectiveness to a traditional phoropter (control device) when applied in visual acuity test in subjects undergoing a full routine eye examination. LFR-260 proposes to provide information of the visual capabilities of the patient. The test will be provided and supervised by a qualified eye care provider. The informed consent, screening, randomization (into the order of visual test device used), (visual) device testing (to include precision testing, remote and offsite testing) will all occur at a single visit.
NCT03124160
This will be a multi-site, participant-blinded, randomized clinical trial. The investigators will randomize 1000 eligible participants in a 4:1 ratio to two different copper IUDs: 800 to Mona Lisa NT Cu380 Mini and 200 to ParaGard.