Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Visual Function: later-stage trial registry
1 of 3 indexed Visual Function trials are currently recruiting, with more weight in Phase 3-4.
Corpus placement: #5,209 of 28,707 conditions by registered trial count.
3 US clinical trials · 1 currently recruiting · #5,209 of 28,707 conditions by registered trial count
Visual Function: 3 US clinical trials tracked, 1 recruiting.
Visual Function is the subject of 3 registered US clinical trials on ClinicalTrials.gov, 1 of them currently open to new participants. 1 are in Phase 3-4 (later-stage) and 0 in Phase 1-2 (earlier-stage). The most active sponsor is Dr. Daniel H. Chang, MD, running 1 of these trials.
Enrollment posture brief
Registry condition visual-function
OPEN 1 | RECR 33% | LATE 1 | EARLY 0 | RANK #5209 | SPON 1
Volume-matched condition peers
Nearest open-share peer: Adherence, Treatment (33% recruiting · 6 trials)
Visual Function lists 1 open slots (33% of 3 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →
Key findings
What ClinicalTrials.gov does not surface for Visual Function on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.
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Visual Function is recruiting below its size-band peers.
1 of 3 indexed trials (33.3%) are open to enrollment, against a 46.5% average across 27,806 conditions with fewer than 20 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.
Open and recent trials
3 total, page 1 of 1
Clinical Evaluation of Low Contrast Visual Performance and Low Light Phenomena in Patients With Various Intraocular Lens Implants
Dr. Daniel H. Chang, MD
NCT07213167
Visual Function After Bilateral Implantation of AcrySof® Toric
Alcon Research
NCT00758550
Effect of Cranial Osteopathy on Visual Function
Nova Southeastern University
NCT00510562
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 4 | 1 |
Top Sponsors
Named interventions
Most-linked intervention names on Visual Function records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Visual Function trials. A trial with sites in several states counts in each.
Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.
Related
What to do with this Visual Function page
3 registered trials, 1 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 1 Visual Function trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- Dr. Daniel H. Chang, MD sponsors the most Visual Function trials on record, review their full trial history before evaluating a specific study. See Dr. Daniel H. Chang, MD's trials
- Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide
Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.
Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Visual Function condition card totals 3 registered trials; most-linked intervention Sham/Placebo; top US site state Texas. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.