An interventional study of Biometry and Refraction in Astigmatism and Glaucoma, sponsored by University of Zurich. Status unknown. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2016-10-27.
Sponsored by University of Zurich · Not applicable, Interventional, and Treatment
This study investigates the effects of trabeculectomy and combined phacoemulsification plus trabeculectomy on corneal astigmatism.
Prospectively, consecutive patients at the University Hospital of Zurich undergoing either trabeculectomy (trab) or phaco-trabeculectomy (phaco-trab) are included in this study between January and December 2017. The study interventions takes place 6 months after surgery and include examination of refraction, biometry and corneal topography in order to assess the patient's astigmatism. The values are compared to the preoperative baseline values, which are available from patient records.
413 studies on the registry are indexed under Astigmatism; 55 are open to participants now.
This study's planned enrollment of 150 is above the median of 55 across 321 interventional studies indexed under Astigmatism.
Browse Astigmatism studies →University of Zurich is the lead sponsor of 1,030 studies on the registry; 130 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
All eyes undergo the same interventions. These are the following examinations: Biometry, Refraction and Corneal Topography. The examinations take place 6 months after surgery
Device: Biometry · Device: Refraction · Device: Corneal Topography
All patients undergo all three examinations (biometry, refraction and corneal topography) 6 months after surgery
All patients undergo all three examinations (biometry, refraction and corneal topography) 6 months after surgery
All patients undergo all three examinations (biometry, refraction and corneal topography) 6 months after surgery
Difference in Astigmatism [Diopters (dpt)]
Time frame: preoperative astigmatism compared to 6 months postoperatively
No study locations are listed for this record.
Plan to share: No
No publications or documents are linked to this record.
This study is status unknown, as verified in Oct 2016. You cannot join it, but the record below documents what was studied.
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University of Zurich