Skip to content

Evaluation of the Effectiveness of Three Tear Substitute Formulations in Postoperative Discomfort After Cataract Surgery

Evaluation of the Effectiveness of Three Tear Substitute Formulations in Postoperative Discomfort After Cataract Surgery: A Non- Interventional, Observational Study

Status
Not yet recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07581548
Acronym
DRY-CAT
Enrollment
300
Registered
2026-05-12
Start date
2026-05-01
Completion date
2027-05-01
Last updated
2026-05-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cataract, Dry Eye

Keywords

dry eye, cataract surgery, sodium hyaluronate, artificial tears

Brief summary

The primary objective of this study is the assessment of three tear substitute formulations in terms of postoperative discomfort following cataract extraction surgery by means of phacoemulsification and intraocular lens implantation.

Detailed description

Participants will be recruited from the Cataract Service of the University Hospital of Alexandroupolis (UHA). All participants will be randomly assigned to three study groups. Study group 1 will receive a fixed combination of chloramphenicol and dexamethasone (Dexachlor, Cooper, Greece) quid for 4 weeks and 0.15 % sodium hyaluronate & Dexpanthenol 2% (Hylopan max, Zwitter, Greece) quid for 12 weeks. Study group 2 will receive a fixed combination of chloramphenicol and dexamethasone (Dexachlor, Cooper, Greece) quid for 4 weeks and 0.15 % sodium hyaluronate & Trehalose 3% (Thealoz duo, Thea, Greece) quid for 12 weeks. Study group 3 will receive a fixed combination of chloramphenicol and dexamethasone (Dexachlor, Cooper, Greece) quid for 4 weeks and 0.2% sodium hyaluronate and amino acids (Helenvision Ultra, Pharmex, Greece) quid for 12 weeks.

Interventions

DRUGSodium Hyaluronate 0.15% and Dexpanthenol 2% drops (Hylopan max)

Cataract patients will be administered Drops of Sodium Hyaluronate 0.15% and Dexpanthenol 2% quid in their postoperative regimen

DRUGSodium Hyaluronate 0.15% and Trehalose 3% drops (Thealoz duo)

Cataract patients will be administered Drops of Sodium Hyaluronate 0.15% and Trehalose 3% quid in their postoperative regimen

DRUGSodium Hyaluronate 0.2% and Amino acids drops (Helenvision ultra)

Cataract patients will be administered Drops of Sodium Hyaluronate 0.2% and Amino acids quid in their postoperative regimen

Sponsors

Democritus University of Thrace
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
45 Years to 85 Years
Healthy volunteers
No

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

Design outcomes

Primary

MeasureTime frameDescription
Tear Break-up Time (TBUT)12 weeksAn objective parameter that quantifies stability of tear film
Ocular Surface Disease Index (OSDI)12 weeksA subjective parameter that quantifies corneal discomfort

Secondary

MeasureTime frameDescription
Efron scale for bulbar redness12 weeksA clinical tool consisting of five photographic, color-calibrated images (graded 0 to 4) that allow practitioners to classify the severity of conjunctival hyperaemia, ranging from normal to severe Grade 0: Normal, pale eyelid margin, minimal conjunctival vessels. Grade 1: Trace/Very Slight redness. Grade 2: Slight/Mild redness. Grade 3: Moderate redness. Grade 4: Severe redness.
Schirmer test (basal tear production)12 weeksAn objective test that assesses basal tear production alone using topical anesthetic drops, by removing the stimulus that triggers reflex tearing.

Countries

Greece

Contacts

CONTACTEirini - Kanella Panagiotopoulou, MD, MSc, PhD
panagiotopoulou.ek@gmail.com+30 6978730858
CONTACTGeorgios Labiris, MD, Prof
labiris@usa.net+30 2551030990
STUDY_CHAIRGeorgios Labiris, MD, Prof

Democritus University of Thrace

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 13, 2026