Which eye drop works best after cataract surgery? new study aims to find out
NCT ID NCT07581548
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study will observe 300 adults who have cataract surgery to see which of three tear substitute eye drops works best for reducing dry eye and discomfort. The drops contain different combinations of sodium hyaluronate, dexpanthenol, trehalose, and amino acids. Researchers will measure symptoms and tear film stability over time.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Sodium hyaluronate, dexpanthenol, trehalose, and amino acids in eye drops
- What this could lead to
- If successful, this could identify the most effective eye drop for reducing dry eye and discomfort after cataract surgery.
- What could go wrong
- This is an observational study, not a controlled trial, so results may be less reliable. The drops are already available, so no major breakthrough is expected.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 300 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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May 2026
An estimate. Start dates often move.
- Expected to finish
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May 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Patients who underwent cataract extraction surgery
- Ages
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45 to 85 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: Diagnosis of senile cataract with stage 2 or 3 nuclear opalescence according to the - Lens Opacities Classification System III (LOCS-3) grading scale Exclusion Criteria: 1. Former incisional surgery 2. Former diagnosis of corneal disease 3. Autoimmune diseases 4. Mental diseases
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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University Hospital of Alexandroupolis
Alexandroupoli, Evros, 68100, Greece
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- A lens that could let cataract patients see near and far without glasses
- One operation for cataract and glaucoma? eye surgeons test a Two-in-One approach
- Can a 13-Minute eye exercise routine ease screen strain?
- Eye drops may shield the cornea after cataract surgery
- Gel plug in tear duct tested to keep eyes moist after cataract surgery
- A gel plug for tear ducts may stop post-surgery dry eye