NCT02945202

Influence of Trabeculectomy and Phaco-trabeculectomy on Corneal Astigmatism

Einfluss Der Trabekulektomie Und Der Kombinierten Phako-Trabekulektomie Auf Den Kornealen Astigmatismus

• Status: Unknown
• Phase: N/A
• Study type: Interventional
• Enrollment: 150 (estimated)
• Sponsor: University of Zurich · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

This study investigates the effects of trabeculectomy and combined phacoemulsification plus trabeculectomy on corneal astigmatism.

Detailed description

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.

Conditions

• Astigmatism
• Glaucoma

Interventions

Type	Name	Description
DEVICE	Biometry	All patients undergo all three examinations (biometry, refraction and corneal topography) 6 months after surgery
DEVICE	Refraction	All patients undergo all three examinations (biometry, refraction and corneal topography) 6 months after surgery
DEVICE	Corneal Topography	All patients undergo all three examinations (biometry, refraction and corneal topography) 6 months after surgery

Timeline

• Start date: 2017-01-01
• Primary completion: 2017-12-01
• Completion: 2018-02-01
• First posted: 2016-10-26
• Last updated: 2016-10-27