Cataract H26.9
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: - Visual acuity reducing cataract (LOCS III Grading, 1-5) - Visual acuity 22 year - planned Cataract surgery for both eyes - potential visual acuity after surgery >= 0,8 dec. - clear ocular media, except cataract - voluntary participation in the study - understood and signed informed consent
Exclusion criteria
Exclusion criteria: - IOL power outside the range of +20.0 D to +27,0 D - Dilated pupil size of less than 6.0 mm - Pupillary abnormalities - microphthalmos - Prior corneal surgery or intraocular surgery - Astigmatism> 0.75 diopters, irregular astigmatism - corneal abnormalities or degenerative disease to reduce the visual acuity during the study to 0.63 or lower - Active inflammation, diseases, pathologies or infection of the anterior or posterior segment of the eye - Glaucoma or ocular hypertension uncontrolled - Congenital cataracts - Initial situations with increased risk of zonula defects (as Pseudoexfoliation or trauma to the eye in the history) - Medication that may affect the visual acuity - Antidepressant or antipsychotic medications - Intraoperative Floppy Iris Syndrome (IFIS) (using alpha-antagonists (for example, tamsulosin) - Acute, chronic or uncontrolled systemic diseases, in the opinion of the examiner an influence on the results of the study (for example, immunosuppression, connective tissue, hypertension, etc.) - Dry eye or the regular use of artificial tears - Poorly controlled diabetes mellitus or insulin-dependent diabetes mellitus - Pregnancy, planned pregnancy or breastfeeding - Current participation or participation in the last 30 days in another study
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Comparision of binocular visual acuity for far and near distance under mesopic light conditions between the IC-8-Group and the Symfony-Group (distance corrected and target corrected; 85cd/m2; 3cd/m2) at 1 month and 3 month after surgery, using grating patterns of different spatial frequency with decreasing contrast. | — |
Secondary
| Measure | Time frame |
|---|---|
| Comparision of binocular visual acuity for far and near distance unter photopic light conditions (distance corrected and target corrected; 10% contrast) Binocular defocuscurve at photopic conditions (target corrected, +2,0 D to -4,0 D) at 1 month and 3 month after surgery. | — |
Countries
Germany
Contacts
Universitätsklinikum Knappschaftskrankenhaus Bochum GmbH Augenklinik