Visual Performance of Multifocal Intraocular Lenses Following Removal of the Crystalline Lens
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Visual Acuity
- Sponsor
- University Clinic Frankfurt
- Enrollment
- 60
- Locations
- 1
- Primary Endpoint
- Best corrected visual acuity at intermediate distance
- Status
- Completed
- Last Updated
- 7 years ago
Overview
Brief Summary
To evaluate the visual performance after bilateral implantation of multifocal intraocular lenses.
Detailed Description
This study evaluates the visual performance after bilateral implantation of multifocal intraocular lenses (IOL). This prospective study is performed at the department of Ophthalmology, Goethe University, Frankfurt, Germany. Patients who received bilateral implantation of a multifocal intraocular lens pre-enrollment were included consecutively. Exclusion criteria were previous ocular surgeries excluding cataract surgery and refractive lens exchange, regular corneal astigmatism of \>1.5 diopter, and ocular pathologies or corneal abnormalities. At 3 months postoperative examination included manifest refraction; monocular and binocular uncorrected (UCVA) and distance-corrected (DCVA) visual acuity in at far, intermediate at near distance (logMAR); slit-lamp examination. 3 months postoperatively defocus testing, binocular contrast sensitivity (CS) under photopic and mesopic conditions, and a questionnaire on subjective quality of vision, optical phenomena, and spectacle independence were performed.
Investigators
Myriam Böhm, MD
Professor Dr. med. Thomas Kohnen
University Clinic Frankfurt
Eligibility Criteria
Inclusion Criteria
- •bilateral cataract surgery or refractive lens exchange with the implantation a multifocal intraocular lens
- •a regular corneal astigmatism \< 1.5 D measured with Pentacam (Oculus, Wetzlar, Germany)
Exclusion Criteria
- •other previous ocular surgeries
- •ocular pathologies
- •corneal abnormalities
- •endothelial cell count below 2000/mm²
Outcomes
Primary Outcomes
Best corrected visual acuity at intermediate distance
Time Frame: Measured 3 month after lens surgery
Monocular and binocular corrected visual acuity at intermediate distance measured in logMAR 3 month after lens surgery
Secondary Outcomes
- Best corrected visual acuity at far distance(Measured 3 month after lens surgery)
- Best corrected visual acuity at near distance(Measured 3 month after lens surgery)
- Uncorrected visual acuity at far distance(Measured 3 month after lens surgery)
- Uncorrected visual acuity at near distance(Measured 3 month after lens surgery)
- Defocus curve testing(Measured 3 month after lens surgery)
- Uncorrected visual acuity at intermediate distance(Measured 3 month after lens surgery)
- Binocular contrast sensitivity (CS) under photopic, mesopic, and mesopic with glare lighting conditions(Measured 3 month after lens surgery)