Glaucoma is a group of eye diseases that damage the optic nerve, usually from high pressure inside the eye. It affects more than 3 million Americans and is a leading cause of blindness. Treatment has long focused on lowering eye pressure with drops, laser, or surgery, and most people who get early treatment keep useful vision.
What's actually going on in research
Trials are testing new ways to lower eye pressure, including longer-acting drug implants and improved laser techniques. Researchers are also studying neuroprotection drugs that might protect the optic nerve even when pressure isn't fully controlled, and gene therapies for rare inherited forms. Some studies focus on early detection through imaging and biomarkers.
Sustained-release implants
Small devices placed in the eye can release pressure-lowering medicine for months, replacing daily drops. Several of these implants are now FDA-approved, and trials are testing newer versions that last longer.
Neuroprotection
Drugs that protect the optic nerve from damage are being tested in people whose glaucoma keeps getting worse despite lower eye pressure. This approach could help the many people who lose vision even with good pressure control.
Gene therapy
For inherited forms of glaucoma, gene therapies aim to correct the underlying genetic defect. Early trials are testing whether a single injection can provide lasting benefit.
What to know before you search
Eligibility typically depends on glaucoma type (open-angle, angle-closure, or other), eye pressure level, amount of optic nerve damage, and prior treatments.
What types of trials are currently open
- Drug implant trials — Testing small devices that release pressure-lowering medicine inside the eye for months at a time, aiming to replace daily drops.
- Neuroprotection trials — Testing drugs that protect the optic nerve from damage, even when eye pressure isn't fully controlled.
- Laser and surgical trials — Testing new laser techniques and minimally invasive surgeries that lower eye pressure with less risk than traditional surgery.
- Imaging studies — Using advanced scans to detect early optic nerve damage and track how glaucoma progresses over time.
- Observational studies — Following people with glaucoma to learn what factors predict vision loss and how different treatments work in real-world use.
Recently added Glaucoma trials
Share your experience with glaucoma medication side effects
The goal of this observational study is to learn whether personality traits are related to eye side effects from glaucoma medications in adults who currently use or previously used these medications. The main questions this study aims to answer are: Are certain personality traits associated with the occurrence or severity of eye side effects from glaucoma medications? Do personality traits differ between people who experience these side effects and those who do not? Participants will complete a questionnaire that measures five personality traits: openness, conscientiousness, extraversion, agreeableness, and neuroticism. They will also provide basic demographic information. The researchers will review participants' medical records to collect information about their glaucoma medications and any related eye side effects, including the type and frequency of side effects and whether treatment was changed because of them. Participation involves one session lasting approximately 30 minutes. Questionnaires may be completed securely online or in person at the clinic. The study will include approximately 352 adults. No treatment will be assigned or changed as part of this study.
Complete eye scans to measure blood flow in diabetic vision problems
The goal of this observational study is to quantify iris blood flow via non-invasive eye scanning for evaluating ocular lesions in adults aged 18 years and older, including healthy volunteers, patients with type 2 diabetes mellitus (T2DM) without fundus lesions, T2DM patients with diabetic retinopathy (DR), and T2DM patients complicated with both DR and neovascular glaucoma (NVG). The main questions it aims to answer are: * Does iris blood flow fraction at six pupillary quadrants differ significantly among people with different stages of type 2 diabetic eye complications? * Are there quadrant-specific and gender-based differences in iris microcirculation changes caused by diabetic eye diseases? If there is a comparison group: Researchers will compare iris blood flow data from four groups (healthy controls, T2DM without DR, T2DM with DR, T2DM with DR + NVG) to see how iris blood circulation changes as diabetic eye conditions get worse, and test whether iris blood flow indicators can help identify patients with neovascular glaucoma. Participants will complete the following tasks: * Provide basic personal information, past medical history and recent laboratory test results from their routine medical records; * Receive a painless, non-invasive iris OCTA eye scan to capture iris blood flow images at six quadrants around the pupil.
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