National Eye Institute (nei)
Clinical trials sponsored by National Eye Institute (nei), explained in plain language.
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Can an antibiotic save your sight? new study tests minocycline for macular degeneration
Disease control CompletedThis study tested whether the antibiotic minocycline, taken as a pill twice daily for at least 3 years, could safely slow the growth of geographic atrophy—an advanced form of age-related macular degeneration that causes blind spots. Thirty-seven adults aged 55 and older with geog…
Phase: PHASE2 • Sponsor: National Eye Institute (NEI) • Aim: Disease control
Last updated Jun 27, 2026 07:58 UTC
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Eye disease study tracks vision loss over years
Knowledge-focused CompletedThis study followed 20 adults aged 55 and older with geographic atrophy, an advanced form of age-related macular degeneration that causes central vision loss. Researchers measured how the damaged area in the eye changed over nearly 4 years using eye exams and photos. The goal was…
Sponsor: National Eye Institute (NEI) • Aim: Knowledge-focused
Last updated Jul 02, 2026 00:00 UTC
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Night vision test could spot early eye disease
Knowledge-focused CompletedThis study looked at whether a simple test measuring how fast eyes recover in the dark can help track early to middle dry age-related macular degeneration (AMD). Researchers followed 217 adults aged 50 and older, with or without AMD, for up to 5 years. The goal was to see if chan…
Sponsor: National Eye Institute (NEI) • Aim: Knowledge-focused
Last updated Jul 02, 2026 00:00 UTC
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Could your gut bacteria be linked to eye disease?
Knowledge-focused CompletedThis study looked at the natural bacteria in the gut of 131 adults with and without uveitis, an inflammatory eye disease. Researchers collected stool and blood samples and performed eye exams to see if differences in gut bacteria are linked to eye inflammation. No treatment was g…
Sponsor: National Eye Institute (NEI) • Aim: Knowledge-focused
Last updated Jul 02, 2026 00:00 UTC
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Could Mom's pregnancy exposures cause Baby's eye defect?
Knowledge-focused CompletedThis study explores whether things a mother is exposed to during early pregnancy might cause uveal coloboma, a rare eye condition present at birth. Researchers will survey mothers of affected children and compare their answers to historical data. The goal is to identify possible …
Sponsor: National Eye Institute (NEI) • Aim: Knowledge-focused
Last updated Jun 27, 2026 14:00 UTC
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Scientists track night vision changes in macular degeneration over 5 years
Knowledge-focused CompletedThis study followed 57 people with age-related macular degeneration (AMD) for up to 5 years to see how their eyes adjust to darkness. Participants had yearly eye exams and dark adaptation tests, where they sat in a dark room and pressed a button when they saw a light. The goal wa…
Sponsor: National Eye Institute (NEI) • Aim: Knowledge-focused
Last updated Jun 27, 2026 13:07 UTC
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Frozen tumors, clearer vision? scientists dig into 20 years of eye records
Knowledge-focused CompletedThis study looks back at 20 years of medical records from 25 people who had a freezing treatment (cryotherapy) for retinal hemangioblastoma, a rare eye tumor often linked to von Hippel-Lindau disease. Researchers want to see how well the treatment controlled the tumors and affect…
Sponsor: National Eye Institute (NEI) • Aim: Knowledge-focused
Last updated Jun 27, 2026 13:06 UTC
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Eye disease biobank seeks clues to uveitis
Knowledge-focused CompletedThis study collected blood, saliva, and eye fluid samples from 343 people with uveitis, an inflammatory eye disease that can cause vision loss. Researchers aimed to learn which genes and other factors might lead to the disease and affect treatment response. Participants were foll…
Sponsor: National Eye Institute (NEI) • Aim: Knowledge-focused
Last updated Jun 27, 2026 13:00 UTC
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Eye study tracks early AMD changes to spot future risks
Knowledge-focused CompletedThis completed study followed 26 adults aged 55 and older with early age-related macular degeneration (AMD) or healthy eyes for up to 5 years. Researchers used eye exams, imaging, and vision tests to track changes in the retina and visual function. The goal was to better understa…
Sponsor: National Eye Institute (NEI) • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:01 UTC
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Massive DNA bank launched to unlock secrets of rare eye diseases
Knowledge-focused CompletedThis study created a national DNA and blood repository for inherited eye diseases like retinitis pigmentosa. Over 6,600 participants provided blood samples and eye exam data to help researchers identify genetic causes. The stored samples are available to scientists without person…
Sponsor: National Eye Institute (NEI) • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:02 UTC
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Eye tests under the microscope for blinding disease
Knowledge-focused CompletedThis completed study looked at how well different eye tests can track changes in retinitis pigmentosa (RP), a group of blinding eye diseases. Researchers tested 49 people with RP and healthy volunteers using exams like vision tests, retinal imaging, and electrical signal recordin…
Sponsor: National Eye Institute (NEI) • Aim: Knowledge-focused
Last updated Jun 27, 2026 07:53 UTC