The Effect of Selective Laser Trabeculoplasty (SLT) on Ocular Rigidity (SLT/ORA)
|Study Design:||Intervention Model: Single Group Assignment
Masking: No masking
Primary Purpose: Treatment
|Official Title:||The Effect of Selective Laser Trabeculoplasty (SLT) on Ocular Rigidity|
- change in ocular rigidity [ Time Frame: 4 weeks ]Is there a change in ocular rigidity (corneal hysteresis, corneal resistance factor) as measured with the Ocular Response Analyzer (Reichert) after selective laser trabeculoplasty?
- IOP reduction [ Time Frame: 4 weeks ]Is there an effective IOP drop after SLT?
|Study Start Date:||November 2010|
|Study Completion Date:||August 2011|
|Primary Completion Date:||August 2011 (Final data collection date for primary outcome measure)|
All of the patients treated with SLT need further IOP reduction for control of their glaucoma.
Procedure: Selective Laser Trabeculoplasty
100 spots with an energy of 0,8 mJ are applied over 360° of the trabecular meshwork of glaucoma patients with a Q-switched 532 nm frequency doubled neodymium YAG Laser.
Ocular Rigidity (corneal hysteresis and corneal resistance factor) is measured with the Ocular Response Analyzer (Reichert) before and 4 weeks after SLT (Q-switched 532 nm frequency doubled neodymium yttrium aluminium garnet laser with a spot size of 400 µm and a 3-ns pulse duration). The trabecular meshwork is treated with 100 spots over 360° and an energy of 0,8 mJ.
The purpose is to examine if selective laser trabeculoplasty changes ocular rigidity.
Please refer to this study by its ClinicalTrials.gov identifier: NCT01247831
|University Eye Clinic Dresden|
|Dresden, Saxonia, Germany, 01307|
|Principal Investigator:||Karin R Hornykewycz, MD||University Eye Clinic Dresden|