h25 H26 Q12.0 Z96.1
Conditions
Interventions
Group 1: Patients with implanted lenses after cataract surgery pass different reading tests.
Sponsors
Klinikum der Wolfgang Goethe-Universität
Eligibility
Sex/Gender
All
Age
50 Years to 70 Years
Inclusion criteria
Inclusion criteria: - the subjects´ age: between 50 and 70 years - pseudophakia - Monofocal aspheric IOL - Corneal astigmatism = 0.75 (rectus and inversus only)
Exclusion criteria
Exclusion criteria: - Dyslexia or illiteracy - complications during cataract surgery, which effects the postoperative visual acuity - Diseases that have an influence on vision - astigmatism> 0.75dpt - Spherical refractive error of 2dpt - Opacity of the refractive media
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| There will be ??unique measurements of the near visual acuity and visus using the Freiburg Acuity and Contrast Test (FRACT), shown on the Salzburg Reading Desk (SRD). As a test mark the Radner Reading Charts, Landolt rings, as well as the tumbling E charts are used. The long distance visual acuity is examined via Frankfurt Freiburg Contrast and Acuity Test System (FF-CATS). | — |
Secondary
| Measure | Time frame |
|---|---|
| single measurement of - The pupil diameter (Procyon ® P3000) - The subjective and objective refraction (iTrace) - The reading speed and reading distance (Salzburg Reading Desk) - The corneal topography (iTrace) | — |
Countries
Germany
Contacts
Public ContactChristine Titke
Klinikum der Johann Wolfgang Goethe Universität
Outcome results
None listed