An observational study in Presbyopia, Pseudophakia and Cataract, sponsored by Democritus University of Thrace. Completed at 1 site in Greece. Open to participants aged 45 Years to 80 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-02-24.
Sponsored by Democritus University of Thrace · Observational
The primary objective of this study is to compare the postoperative visual acuity curves of patients that underwent one of the following surgical procedures: Insertion of an extended depth of focus intraocular lens with digital assistance and insertion of an extended depth of focus intraocular lens without digital assistance.
This is a prospective, comparative study of 60 patients diagnosed with grade 2 cataracts (according to LOCS III) that underwent one of the following surgical procedures: Insertion of an extended depth of focus intraocular lens with digital assistance and insertion of an extended depth of focus intraocular lens without digital assistance.
In these patients, a comparison of postoperative visual acuity curves of both groups will be conducted. Visual acuity curves will be designed using the validated digital optotype Democritus Digital Acuity \& Reading Test (DDART). Assessment of visual acuity will be performed at 9 different distances (25, 28, 33, 40, 50, 60, 100, 200, 300 cm). Overall visual acuity curves and the area under the curve will be formed through the application as the primary means of evaluating visual capacity. Additionally, the degree of subjective satisfaction of the patient will be evaluated through an interview (NEI-VFQ 25). All examinations will be conducted according to standard clinical practice.
336 studies on the registry are indexed under Presbyopia; 35 are open to participants now.
This study's enrollment of 40 is below the median of 88 across 52 observational studies indexed under Presbyopia.
Browse Presbyopia studies →Democritus University of Thrace is the lead sponsor of 70 studies on the registry; 8 are open to participants now.
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Participants that underwent Extended Depth of Focus Intraocular Lens Implantation With and Without Digital Assistance.
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Exclusion Criteria:
Participants that underwent uncomplicated IOL implantation of an extended depth of focus intraocular lens with digital assistance
Diagnostic Test: Visual Acuity Assessment
Participants that underwent uncomplicated IOL implantation of an extended depth of focus intraocular lens without digital assistance
Diagnostic Test: Visual Acuity Assessment
Uncorrected visual acuity for nine distances (25, 28, 33, 40, 50, 60, 100, 200, 300 cm) examination via a Democritus Digital Acuity \& Reading Test (DDART).
Visual acuity assessment
Visual acuity assessment in 9 focal points using DDART chart
Time frame: 4 months
Area of the curve (AOC) assessment
Calculation of the AOC as a visual outscome measure
Time frame: 4 months
the degree of subjective satisfaction of the patient
the degree of subjective satisfaction of the patient will be evaluated through an interview (NEI-VFQ 25)
Time frame: 4 months
Ran from Jan 2024 to primary completion in Nov 2024, 10 months.
Of 25 non-industry observational studies under Presbyopia, half reached primary completion within 10 months of starting (the median), counting those still running; a quarter within 5 and three quarters within 24. This study's 10 months is close to that.
Counting every sponsor, half of 35 studies reached it within 11 months; a quarter within 5 and three quarters within 24.
How these figures are worked out, and which studies are left out of them.
This study is completed, as verified in Feb 2026. You cannot join it, but the record below documents what was studied.
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Democritus University of Thrace