Surgeon Experience ReSTOR A +4 Intraocular Lens (IOL)
This study has been completed.
Information provided by:
First received: August 8, 2008
Last updated: April 14, 2010
Last verified: April 2010
To collect visual outcome data post AcrySof ReSTOR Aspheric +4 implantation from surgeons throughout the United States.
|Study Design:||Observational Model: Cohort
Time Perspective: Retrospective
|Official Title:||Surgeon Experience ReSTOR Aspheric +4 Intraocular Lens (IOL)|
Resource links provided by NLM:
Further study details as provided by Alcon Research:
Primary Outcome Measures:
- Visual Acuity [ Time Frame: 1 week to 10 months ] [ Designated as safety issue: No ]Uncorrected Visual Acuity (UCVA) and Best Spectacle Corrected Visual Acuity (BSCVA) at distance (4 meters) and near at preferred distance and measured by logMAR. LogMAR is the "logarithm of the minimum angle of resolution". It is a unit of measure for visual acuity (VA). A lower logMAR value indicates better visual acuity.
Secondary Outcome Measures:
- Contrast Sensitivity [ Time Frame: 1 week to 10 months ] [ Designated as safety issue: No ]Contrast sensitivity is the measurement of how faded an image may become before it is indistinguishable. Contrast sensitivity was measured in photopic, mesopic, and mesopic with glare conditions at the following spatial frequencies: 1.5, 3, 6, 12, and 18 cpd (cycles per degree). Contrast sensitivity is measured in log units. A higher value for the logarithmic units translates to better contrast sensitivity.
|Study Start Date:||June 2007|
|Primary Completion Date:||March 2008 (Final data collection date for primary outcome measure)|
AcrySof ReSTOR Aspheric +4 Intraocular Lens (IOL)
Patients were implanted with the AcrySof ReSTOR Aspheric +4 Intraocular Lens (IOL) in one or both eyes for treatment of cataract.
Contacts and Locations