COVID-19 is an emerging, rapidly evolving situation.
Get the latest public health information from CDC: https://www.coronavirus.gov.

Get the latest research information from NIH: https://www.nih.gov/coronavirus.
Working…
ClinicalTrials.gov
ClinicalTrials.gov Menu
Open or close the search fields display
2 Studies found for: "Refractive Error" | "Analgesics, Non-Narcotic"

Terms and Synonyms Searched:

Terms Search Results* Entire Database**
Synonyms
Refractive Error 2 studies 1,111 studies
Refraction Errors -- 4 studies
Refractive Disorder -- 2 studies
Analgesics, Non-Narcotic 2 studies 7,646 studies
Non-Narcotic Analgesics -- 5 studies
nonopioid -- 129 studies

   
-- No studies found
* Number of studies in the search results containing the term or synonym
** Number of studies in the entire database containing the term or synonym