Carotenoid supplement trial for vision in Chinese adults
Part of Brain & nervous system, Eyes & vision clinical trials.
This trial tests whether taking carotenoid supplements (like lutein and zeaxanthin) can improve vision. It is for healthy Chinese adults aged 35+ who have good eyesight, no serious eye diseases, and have not taken these supplements recently.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You must be of Chinese descent.
- You are at least 35 years old.
- Your vision (with glasses or contacts) is 20/20 or better in your best eye.
- You have not taken special eye supplements (lutein, zeaxanthin, etc.) in the past year.
- You do not have serious eye diseases (like retinal detachment, glaucoma, or macular degeneration) or diabetes.
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
Similar studies
Other trials that look related to this one.
This study looks at what gets in the way of getting vision services for children and teens with special vision needs. It will help identify barriers and solutions by using questionnaires and interviews in Chinese.
This study tests if taking a carotenoid supplement (MacuHealth) can improve or protect retinal health in healthy adults. You might join if you have normal vision and no major eye or health problems.
This study tests whether a supplement containing lutein, zeaxanthin, and meso-zeaxanthin can increase the amount of these nutrients in your skin. You will take the supplement and a placebo at different times to see if there is a difference.
This study tests whether taking daily supplements of lutein, zeaxanthin, and fish oil can improve the protective pigment in your eyes. It may help people with low macular pigment and good vision who are not already taking high doses of these nutrients.
This study looks at whether getting (or not getting) xanthophylls—plant nutrients like lutein and zeaxanthin—changes how well you see. It’s aimed at people who are on long-term tube or feeding nutrition and who may be missing these nutrients.
This trial tests a new way to deliver lutein (a nutrient for eye health) directly into the eye using a gentle electrical current (iontophoresis). It is for people with advanced age-related macular degeneration (AMD) to see if this treatment can help slow vision loss.
Hear when a new Vision Disorders trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.