Clinical trials
Observational Refractive Errors trials in the United States
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
30 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2004 | 1 |
| 2005 | 1 |
| 2008 | 2 |
| 2011 | 3 |
| 2012 | 1 |
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 5 |
| 2024 | 5 |
| 2025 | 1 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 19 |
| Unknown status | 5 |
| Recruiting | 3 |
| Terminated | 3 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Alcon Research | 7 |
| University of Nebraska | 3 |
| Food and Drug Administration (FDA) | 2 |
| Jaeb Center for Health Research | 2 |
| Johnson & Johnson Surgical Vision, Inc. | 2 |
| Alaska Blind Child Discovery | 1 |
| Aller, Thomas A., OD | 1 |
| American Corneal Consultants | 1 |
| CooperVision International Limited (CVIL) | 1 |
| Gobiquity Mobile Health | 1 |
Top conditions
MeSH conditions the trials were registered with, not their broader categories. A condition with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Refractive Errors | 30 |
| Myopia | 8 |
| Astigmatism | 5 |
| Hyperopia | 5 |
| Amblyopia | 3 |
| Cataract | 3 |
| Dry Eye Syndromes | 2 |
| Macular Degeneration | 2 |
| Blepharoptosis | 1 |
| Corneal Diseases | 1 |
Trials
Showing 1 to 25 of 30. Each trial links to its page on Pharma Observatory.
Recently changed trials
Changes observed in the last 7 days, newest first, site-count changes left out. Source: ClinicalTrials.gov.
No changes to these trials in the last 7 days.
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