HydrationCCI hydrationNCT07581366
Posterior Flap Hydration of Clear Corneal Incisions in Cataract Surgery: Influence on Corneal Wound Tightness and Architecture
A study testing Patient with visible central wound gap of the CCI in people with Hydration and Cataract Surgery, run by University Hospital Pilsen at 1 site in Czechia.
Trial summary
Sutureless clear corneal incision (CCI) is the most commonly used technique for creating an entrance wound in cataract surgery. Corneal incision hydration enhances wound tightness and reduces postoperative fluid suction from the ocular surface into the anterior chamber; thereby, loweres the risk of postoperative… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Hydration, Cataract Surgery
- What is being tested?
- Patient with visible central wound gap of the CCI
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 53 participants
- Where
- 1 siteCzechia
- Study dates
- 14 Jan 2021to 30 Jun 2021
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- cataract
- visible central wound gap of CCI at the end of the surgery
Who cannot join
- any other ocular pathology
- serious systhemic diseases
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Posterior Flap Hydration of Clear Corneal Incisions: Influence on Wound Tightness and Architecture
Sutureless clear corneal incision (CCI) is the most commonly used technique for creating an entrance wound in cataract surgery. Corneal incision hydration enhances wound tightness and reduces postoperative fluid suction from the ocular surface into the anterior chamber; thereby, loweres the risk of postoperative endophthalmitis. Various hydration methods have been employed to close corneal incisions. Standard CCI hydration may be ineffective in sutureless incisions with central wound gaping.
Authors described a new technique of hydration: a posterior flap hydration technique. This study evaluates its effect on corneal wound tightness immediately after hydration, and assess wound architecture on the first postoperative day using anterior segment optical coherence tomography (AS-OCT).
Read the detailed description
The study subjects are patients with uncomplicated cataracts, without other eye diseases and without diseases affecting wound healing (e.g. diabetes mellitus, rheumatoid arthritis, etc.), who have a visible central wound gap of the CCI at the end of the surgery.
- Conditions
- Hydration, Cataract Surgery
- Being tested
- Patient with visible central wound gap of the CCI
- Keywords
- Cataract, clear corneal incision, wound hydration, posterior flap
- Medical subject headings
- Cataract
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Patient with visible central wound gap of the CCIProcedure or surgery
Patient with visible central wound gap of the CCI were treated with posterial flap hydration.
Standard hydrodissection and hydrodelineation cannulas are used for hydration. Cannulas with flat ends, including the cortical cleaving hydrodissector 27 G × 7/8 (BVI Visitec) and a hydrodissector 27 G × 7/8 (Sterimedix Ltd.), are employed. The morphology of the central wound before and after hydration is evaluated using video recordings. On the first postoperative day (20-24 hours after surgery), anterior segment optical coherence tomography (AS-OCT) analysis of corneal incisions is performed with a Tomey Casia 2 device using the Post-op Cataract AS Global Scan application.
| Study group | Role | What they receive |
|---|---|---|
| Central wound gap of CCI | Experimental | Patient with visible central wound gap of the CCI were treated with posterial flap hydration.
Standard hydrodissection and hydrodelineation cannulas are used for hydration. Cannulas with flat ends, including the cortical cleaving hydrodissector 27 G × 7/8 (BVI Visitec) and a hydrodissector 27 G × 7/8 (Sterimedix Ltd.), are employed. The morphology of the central wound before and after hydration is evaluated using video recordings. On the first postoperative day (20-24 hours after surgery), anterior segment optical coherence tomography (AS-OCT) analysis of corneal incisions is performed with a Tomey Casia 2 device using the Post-op Cataract AS Global Scan application. Receives: Procedure: Patient with visible central wound gap of the CCI |
What is being measured
The primary outcome is the main question the study is designed to answer.
posterior flap hydration
The Primary Outcome Measure is to evaluate the tightness of the corneal wound after the posterior flap hydration peroperatively (at the end fo the surgery) - no leakage of the intraocular fluid schould by observed after the hydration.
Measured: 1 day after surgery
Secondary outcomes (1)
Corneal wound morphology on the first postoperative day
The other Outcome Measure is the corneal wound morphology on the first postoperative day (20-24 hours after surgery) using anterior segment optical coherence tomography (AS-OCT). The corneal incision pathology (central wound gaping, posterior flap prominence, tongue eversion, tongue retraction and focal Descemet's membrane detachment ) will be serached on OCT pictures and their incidence among study patients will be reported as a percentage (%).
Measured: 20-24 hours after surgery
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted12 May 2026
- Study start14 Jan 2021
- Primary completion31 Mar 2021
- Study completion30 Jun 2021
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for HydrationStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 53 participants (actual)
Sponsor and investigators
- Lead sponsor
- University Hospital Pilsen
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07581366
- Sponsor's protocol ID
- Posterior flap hydration
- Acronym
- CCI hydration
- Status last verified
- May 2026
- First submitted
- 23 Apr 2026
- Last updated
- 12 May 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Study at a glance
From the registry record, last updated by the sponsor on 12 May 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Posterior Flap Hydration of Clear Corneal Incisions: Influence on Wound Tightness and Architecture
- ClinicalTrials.gov ID
- NCT07581366
- Acronym / sponsor ID
- CCI hydration / Posterior flap hydration
- Conditions
- Hydration, Cataract Surgery
- Keywords
- Cataract, clear corneal incision, wound hydration, posterior flap
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 53 participants (actual)
- Lead sponsor
- University Hospital PilsenUniversity, hospital or other
- Study start
- 14 Jan 2021 (actual)
- Primary completion
- 31 Mar 2021 (actual)
- Study completion
- 30 Jun 2021 (actual)
- First posted
- 12 May 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Sutureless clear corneal incision (CCI) is the most commonly used technique for creating an entrance wound in cataract surgery. Corneal incision hydration enhances wound tightness and reduces postoperative fluid suction from the ocular surface into the anterior chamber; thereby, loweres the risk of postoperative endophthalmitis. Various hydration methods have been employed to close corneal incisions. Standard CCI hydration may be ineffective in sutureless incisions with central wound gaping.
Authors described a new technique of hydration: a posterior flap hydration technique. This study evaluates its effect on corneal wound tightness immediately after hydration, and assess wound architecture on the first postoperative day using anterior segment optical coherence tomography (AS-OCT).
Detailed description
The study subjects are patients with uncomplicated cataracts, without other eye diseases and without diseases affecting wound healing (e.g. diabetes mellitus, rheumatoid arthritis, etc.), who have a visible central wound gap of the CCI at the end of the surgery.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Central wound gap of CCI | Experimental | Procedure: Patient with visible central wound gap of the CCIPatient with visible central wound gap of the CCI were treated with posterial flap hydration. Standard hydrodissection and hydrodelineation cannulas are used for hydration. Cannulas with flat ends, including the cortical cleaving hydrodissector 27 G × 7/8 (BVI Visitec) and a hydrodissector 27 G × 7/8 (Sterimedix Ltd.), are employed. The morphology of the central wound before and after hydration is evaluated using video recordings. On the first postoperative day (20-24 hours after surgery), anterior segment optical coherence tomography (AS-OCT) analysis of corneal incisions is performed with a Tomey Casia 2 device using the Post-op Cataract AS Global Scan application. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (2 listed)
- cataract
- visible central wound gap of CCI at the end of the surgery
Key exclusion criteria (2 listed)
- any other ocular pathology
- serious systhemic diseases
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Patient with visible central wound gap of the CCIPatient with visible central wound gap of the CCI were treated with posterial flap hydration. Standard hydrodissection and hydrodelineation cannulas are used for hydration. Cannulas with flat ends, including the cortical cleaving hydrodissector 27 G × 7/8 (BVI Visitec) and a hydrodissector 27 G × 7/8 (Sterimedix Ltd.), are employed. The morphology of the central wound before and after hydration is evaluated using video recordings. On the first postoperative day (20-24 hours after surgery), anterior segment optical coherence tomography (AS-OCT) analysis of corneal incisions is performed with a Tomey Casia 2 device using the Post-op Cataract AS Global Scan application. | Procedure or surgery | Central wound gap of CCI |
Primary outcome
posterior flap hydration
Time frame: 1 day after surgery
The Primary Outcome Measure is to evaluate the tightness of the corneal wound after the posterior flap hydration peroperatively (at the end fo the surgery) - no leakage of the intraocular fluid schould by observed after the hydration.
1 secondary outcome
Corneal wound morphology on the first postoperative day
Time frame: 20-24 hours after surgery
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 12 May 2026.
- Individual participant dataSharing planned: Undecided
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Patient with visible central wound gap of the CCI in people with Hydration and Cataract Surgery, run by University Hospital Pilsen at 1 site in Czechia.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 12 May 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Czechia. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
posterior flap hydration (time frame: 1 day after surgery). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 12 May 2026; AzTrials last refreshed its copy on 8 Nov 2026.