An interventional study of with/without dry eye syndrome in Dry Eye Syndromes, sponsored by Chung Shan Medical University. Completed at 1 site in Taiwan. Open to participants aged 20 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-08-29.
Sponsored by Chung Shan Medical University · Not applicable, Interventional, and Diagnostic
Application of tear ferning test for clinical dry eye diagnosis
Comparing dry eye patients' tear ferning structure with non-dry eye patients' to develop a protocol for easy and costless diagnosis in ophthalmology.
1,292 studies on the registry are indexed under Dry Eye Syndromes; 191 are open to participants now.
This study's enrollment of 26 is below the median of 60 across 1,077 interventional studies indexed under Dry Eye Syndromes.
Browse Dry Eye Syndromes studies →Chung Shan Medical University is the lead sponsor of 124 studies on the registry; 26 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
Collect clinical information and tear samples from patients with dry eye syndrome.
Collect clinical information and tear samples from patients without dry eye syndrome.
Other: with/without dry eye syndrome
compare tear ferning structure between dry eye and non-dry eye patients
Schirmer's test
to assess tear secretion volume
Time frame: 5 minutes
Tear film breakup time
to assess tear quality
Time frame: 20 seconds
Ocular surface health evaluate
To assess the health status with Lissamine green stain
Time frame: 3 minutes
Ocular surface disease index
A questionnaire to assess the health status on ocular surface A final score is calculated which ranges from 0 to 100 with scores 0 to 12 representing normal, 13 to 22 representing mild dry eye disease, 23 to 32 representing moderate dry eye disease, and greater than 33 representing severe dry eye disease.
Time frame: 20 minutes
Intraocular pressure
to determine the effects of intervention on intraocular pressure
Time frame: 2 minutes
Plan to share: No
No publications or documents are linked to this record.
This study is completed, as verified in Aug 2025. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Chung Shan Medical University