CataractNCT00716339
Pseudophakic Accommodation
A study testing motivation in people with Cataract, run by Medical University of Vienna at 1 site in Austria.
Trial summary
Purpose: The aim of this study was to compare the effect of ciliary body training as proposed by manufacturers of accommodating IOLs and patient motivation on the pseudoaccommodative ability with a standard intraocular lens (SA60AT). Setting: Department of Ophthalmology, Medical University of Vienna. Read more about this study
- Who is it for?
- Ages 50 to 75 years
- Conditions the study is for
- Cataract
- What is being tested?
- motivation
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 40 participants
- Where
- 1 siteAustria
- Study dates
- Start not givento not given
- 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 50 to 75 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Patients suffering from age-related cataract who are enrolled for cataract surgery.
- Age 50 to 75 years
- < 1 D of corneal astigmatism, estimated postoperative VA of 20/30 or better and IOL power between 16 and 27 dpt
Who cannot join
- Patients with complications during cataract surgery or during the postoperative period, significant other ophthalmic diseases such as glaucoma, diabetic retinopathy, etc., or ophthalmic surgery other than cataract surgery
Trial locations and contacts
1 site in 1 country.
Austria1 site
Medical University Vienna, Department of Ophthalmology
Vienna, State of Vienna, 1090
About this study
Purpose:
The aim of this study was to compare the effect of ciliary body training as proposed by manufacturers of accommodating IOLs and patient motivation on the pseudoaccommodative ability with a standard intraocular lens (SA60AT).
Read more
Setting:
Department of Ophthalmology, Medical University of Vienna.
Methods:
This randomized, controlled, examiner-masked study comprised 80 eyes of 40 patients that underwent standard cataract surgery. Patients were randomly assigned to a "motivated" or "non-motivated" (control) group. In the motivated group, subjects were told to take part in a special protocol to improve their near-reading ability after cataract surgery and were instructed not to use near adds for at least 3 months. Follow-up examinations included best-corrected distance visual acuity (VA), distance-corrected near VA, best-corrected near VA, defocus curve and reading speed, as well as pilocarpine-, cyclopentolate- and nearpoint-induced IOL shift assessed with partial coherence interferometry.
- Conditions
- Cataract
- Being tested
- motivation
- Keywords
- pseudophakic accommodation
- Medical subject headings
- Cataract
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
motivationBehavioural
| Study group | Role | What they receive |
|---|---|---|
| 1 | Active comparator | motivated Receives: Behavioral: motivation |
| 2 | No intervention | control |
What is being measured
The primary outcome is the main question the study is designed to answer.
visual acuity (best-corrected distance VA, distance-corrected near VA, best-corrected near VA)
Secondary outcomes (1)
IOL shift (pilocarpine-, cyclopentolate- and nearpoint-induced) assessed with partial coherence interferometry
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted16 Jul 2008 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for CataractStudies of the same condition, open and under way.
- More trials run by Medical University of ViennaThe sponsor's other registered studies.
- 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
- Randomised
- Intervention model
- Parallel groups
- Enrolment
- 40 participants
Sponsor and investigators
- Lead sponsor
- Medical University of Vienna
- Sponsor type
- University, hospital or other
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00716339
- Sponsor's protocol ID
- EK 481/2004
- Status last verified
- Jul 2008
- First submitted
- 9 Jul 2008
- Last updated
- 16 Jul 2008
- Results posted
- No
Study at a glance
From the registry record, last updated by the sponsor on 16 Jul 2008. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Pseudophakic Accommodation
- ClinicalTrials.gov ID
- NCT00716339
- Acronym / sponsor ID
- EK 481/2004
- Conditions
- Cataract
- Keywords
- pseudophakic accommodation
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 40 participants
- Lead sponsor
- Medical University of ViennaUniversity, hospital or other
- First posted
- 16 Jul 2008 (estimated)
- 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.
Purpose:
The aim of this study was to compare the effect of ciliary body training as proposed by manufacturers of accommodating IOLs and patient motivation on the pseudoaccommodative ability with a standard intraocular lens (SA60AT).
Setting:
Department of Ophthalmology, Medical University of Vienna.
Methods:
This randomized, controlled, examiner-masked study comprised 80 eyes of 40 patients that underwent standard cataract surgery. Patients were randomly assigned to a "motivated" or "non-motivated" (control) group. In the motivated group, subjects were told to take part in a special protocol to improve their near-reading ability after cataract surgery and were instructed not to use near adds for at least 3 months. Follow-up examinations included best-corrected distance visual acuity (VA), distance-corrected near VA, best-corrected near VA, defocus curve and reading speed, as well as pilocarpine-, cyclopentolate- and nearpoint-induced IOL shift assessed with partial coherence interferometry.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| 1 | Active comparator | Behavioral: motivationmotivated |
| 2 | No intervention | –control |
Who may qualify
- Ages
- 50 to 75 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Patients suffering from age-related cataract who are enrolled for cataract surgery.
- Age 50 to 75 years
- < 1 D of corneal astigmatism, estimated postoperative VA of 20/30 or better and IOL power between 16 and 27 dpt
Key exclusion criteria (1 listed)
- Patients with complications during cataract surgery or during the postoperative period, significant other ophthalmic diseases such as glaucoma, diabetic retinopathy, etc., or ophthalmic surgery other than cataract surgery
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 |
|---|---|---|
| motivation | Behavioural | 1 |
Primary outcome
visual acuity (best-corrected distance VA, distance-corrected near VA, best-corrected near VA)
1 secondary outcome
IOL shift (pilocarpine-, cyclopentolate- and nearpoint-induced) assessed with partial coherence interferometry
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 16 Jul 2008.
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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 motivation in people with Cataract, run by Medical University of Vienna 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 3 inclusion and 1 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 16 Jul 2008. 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?
visual acuity (best-corrected distance VA, distance-corrected near VA, best-corrected near VA). 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 16 Jul 2008; AzTrials last refreshed its copy on 30 Oct 2026.