ClinicalTrials.gg
Active, not recruitingNCT05753787EyeSurfaceUpdated Sep 28, 2023

Eye Surface Properties After Using Dexamethasone Drops With and Without Preservatives in Patients After Cataract Surgery

An interventional study of preservative-free solution of standard post-cataract eye drops in Cataract, Surgical Injury and Healing Wound, sponsored by Spektrum Center of Clinical Ophthalmology. Active, not recruiting at 1 site in Poland. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-09-28.

Sponsored by Spektrum Center of Clinical Ophthalmology · Not applicable, Interventional, and Health services research

From the registry’s dates

  • Primary completion was expected by Dec 2023, 2 years 10 months ago, but the record still lists the study as active, not recruiting.
  • Registered 9 months after the study started (first participant enrolled Jan 2022, registered Oct 2022).
Phase
Not applicable
Study type
Interventional
Enrollment
40
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 14 studies in Cataract with a site in Poland — 4 open to participants now, 5 under way, none of them phase 3. Cataract · Poland.

Planned enrollment
7th of 10
40 · median 84
Started
2022
the only one that year
No phase
8 of 14
3 open now
Registered
9th of 14
by date

Among the 14 studies in Cataract with a site in Poland, this one is the 7th largest by planned enrollment of the 10 interventional ones that give a count, is the only one that started in 2022, is one of 8 with no phase, and was the 9th registered.

Cataract

1,629 studies on the registry are indexed under Cataract; 235 are open to participants now.

Browse Cataract studies →

Open to participants now

4 of the 14 studies in Cataract with a site in Poland are open now. Recruiting first, the newest first:

All 4 open studies →

A study can be open while its sites in Poland have not opened yet or have stopped. Only those recruiting at a site in Poland →

Who these studies take

Of the 141 Cataract studies recruiting now, 88 (62%) set no upper age limit and 8 (6%) stop at 75 or younger; 10 take children under 18; 16 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

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02

Study summary

The goal of this interventional, real world data study is to evaluate the impact of preservatives on the post-cataract ocular surface.

The main question is to learn about an effect of preservatives on the eye surface. The study aims to answer some important questions:

  • if the usage of preservatives has an impact on the eye surface healing process after cataract surgery
  • if patient comfort and quality of life improve more or more rapidly with preservatives-free eye drops.

Participants will be asked to undergo standard procedure of peri-cataract surgery care and in addition to survey about the ocular surface state.

Researchers will compare group that takes preservatives-free dexamethasone 0.1% with standard dexamethasone 0.01% solution to see if post-surgery eye surface healing properties differ from both groups.

03

Conditions studied

  • Cataract
  • Surgical Injury
  • Healing Wound
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • cataract surgery required defined previously by the eye-care specialist
  • good and clear visibility of the anterior chamber in the pre-surgery status (enables investigators to assess the anterior chamber cell intensity)
  • consent to the study protocol

Exclusion criteria

Exclusion Criteria:

  • diagnosed glaucoma
  • diagnosed previous allergy
  • diagnosed diabetic retinopathy or maculopathy
  • previously diagnosed dry eye disease that requires treatment with multiple artificial tears
  • permanent usage of the eye drops other than artificial tears
  • non-compliance to the study protocol
05

Study design

Phase
Not applicable
Primary purpose
Health services research
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
40 participants (estimated)

Study arms

  • Active comparator
    preservatives-free dexamethasone 0.1% eye drops

    Other: preservative-free solution of standard post-cataract eye drops

  • Placebo comparator
    preserved dexamethasone 0.1% eye drops

    Other: preservative-free solution of standard post-cataract eye drops

Interventions

  • Otherpreservative-free solution of standard post-cataract eye drops

    Usage of preservative-free eye drops in comparison to the standard preserved drops with dexamethasone 0.01%.

06

What researchers measure

Primary outcomes

  1. Best corrected visual acuity result

    best corrected visual acuity evaluated with standard ETDRS for distant and for near vision

    Time frame: up to 21 days post-surgery

  2. Ocular staining score result

    standard staining score - a scale used with the fluorescein stain; higher value expres more severe outcome, normal values are around 0-1. Overal information can be found: https://entokey.com/a-simplified-quantitative-method-for-assessing-keratoconjunctivitis-sicca-from-the-sjogrens-syndrome-international-registry/

    Time frame: up to 21 days post-surgery

  3. Ocular Surface Disease Index survey result

    a standard survey that patient will preform at each visit

    Time frame: up to 21 days post-surgery

Secondary outcomes

  1. Fluorescein Break-up Time assessment

    time to break-up the tear film after the instilation of the fluorescein eye drop (evaluated 3 fold and the mean will be taken into account)

    Time frame: up to 21 days post-surgery

  2. SICCA scale assessment

    Scale that requires both fluorescein and lissamine green staining profile assesment - used in the standardised manner

    Time frame: up to 21 days post-surgery

  3. Shirmer test 1 measurement

    test that evaluate the amount of tears (in mm on the test paper) that are produced within 5 minutes and are evaluated under the anesthesia

    Time frame: up to 21 days post-surgery

  4. Intraocular pressure measurement

    Intraocular pressure measurement preformed by standard tonometer

    Time frame: up to 21 days post-surgery

  5. Anterior chamber cell intensity measurement

    the standardised SUN assesment of the anterior chamber cell intensity will be preformed - a standardised scale

    Time frame: up to 21 days post-surgery

07

Study locations

1 site
  • Spektrum Clinic of Ophthalmology
    Wrocław, 54-622, Poland
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Jan 2022 (actual). Primary completion is estimated for Dec 2023, 23 months after the start.

Of 300 non-industry interventional studies with no phase under Cataract, half reached primary completion within 18 months of starting (the median), counting those still running; a quarter within 7 and three quarters within 30. This study's planned 23 months is above that.

Counting every sponsor, half of 490 studies reached it within 17 months; a quarter within 9 and three quarters within 28.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 23, 2022
First posted
Mar 3, 2023
StartActual
Jan 1, 2022
Primary completionEst.
Dec 31, 2023
CompletionEst.
Dec 31, 2025
Last update
Sep 28, 2023
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 28, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05753787
Lead sponsor
Spektrum Center of Clinical Ophthalmology
Collaborators
Wrocław University of Science and Technology
Responsible party
Sponsor
First posted
Mar 3, 2023
Start date
Jan 1, 2022
Primary completion
Dec 31, 2023 (estimated)
Completion
Dec 31, 2025 (estimated)
Last update
Sep 28, 2023

Study contacts

Maria Muzyka-Woźniak, PhD
principal investigator · Spektrum Clinic of Ophthalmology

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Sep 2023. You cannot join it, but the record below documents what was studied.

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