An observational study in Visual Acuity, sponsored by University Clinic Frankfurt. Completed at 1 site in Germany. Open to participants aged 45 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2018-10-10.
Sponsored by University Clinic Frankfurt · Observational
Among 22 studies in Patient Satisfaction with a site in Germany — 3 open to participants now, 3 under way, none of them phase 3. Patient Satisfaction · Germany.
Among the 22 studies in Patient Satisfaction with a site in Germany, this one is the 11th largest by enrollment of the 12 observational ones that give a count, is one of 2 that started in 2014, is one of 12 observational ones, and was the 12th registered.
877 studies on the registry are indexed under Patient Satisfaction; 202 are open to participants now.
Browse Patient Satisfaction studies →3 of the 22 studies in Patient Satisfaction with a site in Germany are open now. Recruiting first, the newest first:
LMU Klinikum · Sites in Germany
Augenklinik Ahaus G + H GmbH & Co. KG · Sites in Germany
Tobias Schreiber · Sites in Germany
A study can be open while its sites in Germany have not opened yet or have stopped. Only those recruiting at a site in Germany →
Of the 99 Patient Satisfaction studies recruiting now, 61 (62%) set no upper age limit and 30 (30%) stop at 75 or younger; 14 take children under 18; 26 take healthy volunteers.
This study: 45 Years and older · all sexes · healthy volunteers too.
The full table on the hub →This tab as a report to print or save as PDF → With an account.
22 studies; the count open now beside each. This study's row is marked.
First in 2008; this study’s year is marked. 2 started in 2014.
By drug class, each counting the studies that test any of its medicines:
This study's enrollment of 25 is below the median of 149 across 225 observational studies indexed under Patient Satisfaction.
Median enrollment 123 across the 10 interventional studies, 116 across the 12 observational. Of the 16 that completed or were terminated, 0 (0%) have results posted.
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7 of 22 have an industry lead sponsor. The 10 most frequent:
University Clinic Frankfurt is the lead sponsor of 12 studies on the registry; 1 is open to participants now.
University Clinic Frankfurt has 2 studies filed under Patient Satisfaction — fewer than ten, so there is no comparison to draw.
1 of the studies in Patient Satisfaction with a site in Germany that are under way reach primary completion within a year, 0 of them phase 3. Phase 3 first, then by date:
| Study | Primary completion |
|---|---|
| NCT07424482Tobias SchreiberEducational Video to Improve Understanding and Reduce Anxiety in Heart Attack Patients | 2027-09-01 |
Among the 22 studies in Patient Satisfaction with a site in Germany, from their registry updates:
Nothing recorded among them since 2026-09-25.
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To evaluate visual outcomes of a segmental refractive multifocal intraocular lens (IOL) after cataract surgery.
Purpose: This prospective, nonrandomized noncomparative case series investigates the visual performance after bilateral implantation of a segmental refractive multifocal intraocular lenses (IOL) after cataract surgery and was performed at the department of Ophthalmology, Goethe University, Frankfurt, Germany.
Methods: Fifty eyes (25 patients) were included. Inclusion criteria were bilateral cataract, age > 45 years, corneal astigmatism ≤ 0.75 D postoperatively, pupil size 3 to 6 mm (mesopic), and center shift \< 1 mm (Pentacam). Exclusion criteria were previous ocular surgeries, amblyopia or potential postoperative distance-corrected visual acuity (DCVA) \< 0.3 logMAR,
Intervention or Observation: Uncorrected (UCVA) and DCVA in 4 m, 80 cm, 40 cm; contrast sensitivity (CS) under photopic and mesopic conditions; reading skills (Radner Reading Charts); defocus curve, questionnaire on optical quality (OQ) and spectacle independence were assessed after 3 months.
Main Outcome Measures: At 3 months postoperatively, UCVA and DCVA in 4 m, 80 cm, 40 cm (logMAR); defocus curves; CS; reading skills; and OQ questionnaire results.
Patients who received bilateral cataract surgery with the implantation of a segmental refractive multifocal intraocular lens
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.
Exclusion Criteria:
Procedure/Surgery: Bilateral implantation of a segmental refractive multifocal intraocular lens (MIOL) following cataract surgery.
Best corrected visual acuity at far distance
Monocular and binocular corrected visual acuity at far distance measured in logMAR 3 month after lens surgery
Time frame: Measured 3 month after lens surgery
Best corrected visual acuity at intermediate distance
Monocular and binocular corrected visual acuity at intermediate distance measured in logMAR 3 month after lens surgery
Time frame: Measured 3 month after lens surgery
Best corrected visual acuity at near distance
Monocular and binocular best corrected visual acuity at near distance measured in logMAR 3 month after lens surgery
Time frame: Measured 3 month after lens surgery
Uncorrected visual acuity at far distance
Monocular and binocular uncorrected visual acuity at far distance measured in logMAR 3 month after lens surgery
Time frame: Measured 3 month after lens surgery
Uncorrected visual acuity at intermediate distance
Monocular and binocular uncorrected visual acuity at intermediate distance measured in logMAR 3 month after lens surgery
Time frame: Measured 3 month after lens surgery
Uncorrected visual acuity at near distance
Monocular and binocular uncorrected visual acuity at near distance measured in logMAR 3 month after lens surgery
Time frame: Measured 3 month after lens surgery
Binocular contrast sensitivity (CS) under photopic, mesopic, and mesopic with glare lighting conditions
Binocular contrast sensitivity (CS) was measured with the Functional Acuity Contrast Test (FACT) chart in the Optec 6500 Vision Tester (Stereo Optical Co., Chicago, IL) under binocular photopic (85 cd/m²), mesopic (3 cd/m²), and photopic and mesopic with glare conditions at a spatial frequency of 6 cycles per degree (cpd) (threshold range 0.78-2.26).
Time frame: Measured 3 month after lens surgery
Defocus curve testing
Defocus curve (monocular and binocular) was tested from -5.0 D to +2.0 D in 0.5 D steps under photopic lighting conditions (ETDRS).
Time frame: Measured 3 month after lens surgery
Radner reading skills
Binocular distance-corrected reading acuity (40 cm) was investigated in LogRAD (Reading Acuity Determination) using reading charts (Radner Reading Charts).
Time frame: Measured 3 month after lens surgery
Optical quality questionnaire
Quality of vision questionnaire (visual analogue scale (VAS) 0 (perfect / no symptoms) to 100 (extremely poor / maximum symptom intensity)) asking for evaluation of "glare", "halos", "starbursts", "blurred vision", and "ghosting" under photopic, mesopic and scotopic light conditions, if they wear any spectacles, and to evaluate their total quality of vision.
Time frame: Measured 3 month after lens surgery
Plan to share: No
No publications or documents are linked to this record.
Ran from Aug 2014 to primary completion in May 2018, 44 months.
Of 105 non-industry observational studies under Patient Satisfaction, half reached primary completion within 20 months of starting (the median), counting those still running; a quarter within 7 and three quarters within 45. This study's 44 months is above that.
Counting every sponsor, half of 111 studies reached it within 20 months; a quarter within 7 and three quarters within 44.
How these figures are worked out, and which studies are left out of them.
This study is completed, as verified in Oct 2018. You cannot join it, but the record below documents what was studied.
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University Clinic Frankfurt