Cataract SenileNCT04740788
Study on Visual Performance of a Monofocal Intraocular Lens
An observational study of Cataract Senile, run by Carl Zeiss Meditec AG at 1 site in Austria.
Trial summary
Retrospective/Prospective Study on Visual Performance of a Monofocal Intraocular Lens (IOL). The objective is to compare best corrected distance visual acuity (CDVA) between 1-3-month and 12- month follow-up. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Cataract Senile
- What is being tested?
- Monofocal IOL
- Type of treatment
- Medical device
- How many people
- 44 participants
- Where
- 1 siteAustria
- Study dates
- 19 Feb 2021to 18 May 2021
- Phase
- Observational
- 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
Study population: Cataract patients already implanted with a monofocal IOL
Who may be able to join
- Age 18 years or older;
- Patients with monolateral or bilateral (only one eye will be the study eye) monofocal IOL implantation after uncomplicated surgery in the period between May 2019 and November 2019, if the follow-up visit can be performed 10-18 months after surgery;
- No visual acuity limiting pathologies;
- Availability of 1-3-month postoperative data
- Availability, willingness and sufficient cognitive awareness to comply with examination procedures in case of a prospective 12-month visit;
- Written informed consent for participation in the study and data protection.
Who cannot join
- Difficulty for cooperation (distance from their home, general health conditions)
- Subjects with diagnosed degenerative visual disorders (e.g. macular degeneration or other retinal or optic disorders) that would confound visual acuity measurements;
- Subjects with surgical complications or secondary interventions (except for Nd:YAG capsulotomy) related to the cataract surgery of the monofocal IOL eye(s) or any other interventions in the post-operative eye including but not limited to glaucoma surgery, retinal surgery;
- Visual field loss which has impact on visual acuity;
- Use of systemic or ocular medication that might affect vision;
- Patients with amblyopia, strabismus, forme fruste keratoconus or keratoconus;
- Capsular or zonular abnormalities that have affected postoperative centration or tilt of the lens (e.g. pseudoexfoliation syndrome);
- Concurrent participation in another device investigation.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Multicentric Retrospective/Prospective Study on Visual Performance of a Monofocal Intraocular Lens (IOL)
Retrospective/Prospective Study on Visual Performance of a Monofocal Intraocular Lens (IOL). The objective is to compare best corrected distance visual acuity (CDVA) between 1-3-month and 12- month follow-up.
- Conditions
- Cataract Senile
- Being tested
- Monofocal IOL
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Monofocal IOLDevice
Patients are already implanted with a monofocal lens
| Study group | Role | What they receive |
|---|---|---|
| Monofocal IOL | Patients already implanted with a monofocal IOL Receives: Device: Monofocal IOL |
What is being measured
The primary outcome is the main question the study is designed to answer.
Best corrected distance visual acuity (CDVA)
Comparison between 1-3-month and 12- month follow-up results.
Measured: 12 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted5 Feb 2021
- Study start19 Feb 2021
- Primary completion18 May 2021
- Study completion18 May 2021
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Cataract SenileStudies 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
- Observational
- Observational model
- Case only
- Time perspective
- Prospective
- Enrolment
- 44 participants (actual)
Sponsor and investigators
- Lead sponsor
- Carl Zeiss Meditec AG
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04740788
- Sponsor's protocol ID
- GPAS-SUR-020-02
- Status last verified
- Aug 2021
- First submitted
- 2 Feb 2021
- Last updated
- 17 Aug 2021
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 17 Aug 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Multicentric Retrospective/Prospective Study on Visual Performance of a Monofocal Intraocular Lens (IOL)
- ClinicalTrials.gov ID
- NCT04740788
- Acronym / sponsor ID
- GPAS-SUR-020-02
- Conditions
- Cataract Senile
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 44 participants (actual)
- Lead sponsor
- Carl Zeiss Meditec AGIndustry (pharma, biotech, devices)
- Study start
- 19 Feb 2021 (actual)
- Primary completion
- 18 May 2021 (actual)
- Study completion
- 18 May 2021 (actual)
- First posted
- 5 Feb 2021 (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.
Retrospective/Prospective Study on Visual Performance of a Monofocal Intraocular Lens (IOL). The objective is to compare best corrected distance visual acuity (CDVA) between 1-3-month and 12- month follow-up.
Study design
- Observational model
- Case only
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Monofocal IOL | – | Device: Monofocal IOLPatients already implanted with a monofocal IOL |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Cataract patients already implanted with a monofocal IOL
Key inclusion criteria (6 listed)
- Age 18 years or older;
- Patients with monolateral or bilateral (only one eye will be the study eye) monofocal IOL implantation after uncomplicated surgery in the period between May 2019 and November 2019, if the follow-up visit can be performed 10-18 months after surgery;
- No visual acuity limiting pathologies;
- Availability of 1-3-month postoperative data
- Availability, willingness and sufficient cognitive awareness to comply with examination procedures in case of a prospective 12-month visit;
Key exclusion criteria (8 listed)
- Difficulty for cooperation (distance from their home, general health conditions)
- Subjects with diagnosed degenerative visual disorders (e.g. macular degeneration or other retinal or optic disorders) that would confound visual acuity measurements;
- Subjects with surgical complications or secondary interventions (except for Nd:YAG capsulotomy) related to the cataract surgery of the monofocal IOL eye(s) or any other interventions in the post-operative eye including but not limited to glaucoma surgery, retinal surgery;
- Visual field loss which has impact on visual acuity;
- Use of systemic or ocular medication that might affect vision;
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 |
|---|---|---|
| Monofocal IOLPatients are already implanted with a monofocal lens | Device | Monofocal IOL |
Primary outcome
Best corrected distance visual acuity (CDVA)
Time frame: 12 months
Comparison between 1-3-month and 12- month follow-up results.
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 17 Aug 2021.
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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?
An observational study of Cataract Senile, run by Carl Zeiss Meditec AG at 1 site in Austria.
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 6 inclusion and 8 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 17 Aug 2021. 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 Austria. 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?
Best corrected distance visual acuity (CDVA) (time frame: 12 months). 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 17 Aug 2021; AzTrials last refreshed its copy on 6 Nov 2026.