Astigmatism, Glaucoma
Conditions
Brief 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.
Interventions
DEVICEBiometry
All patients undergo all three examinations (biometry, refraction and corneal topography) 6 months after surgery
DEVICERefraction
All patients undergo all three examinations (biometry, refraction and corneal topography) 6 months after surgery
DEVICECorneal Topography
All patients undergo all three examinations (biometry, refraction and corneal topography) 6 months after surgery
Sponsors
University of Zurich
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Trabeculectomy or Phaco-Trabeculectomy between 01/2017 and 12/2017 * Age ≥18 years
Exclusion criteria
* Acute or chronic corneal diseases
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Difference in Astigmatism [Diopters (dpt)] | preoperative astigmatism compared to 6 months postoperatively |
Outcome results
None listed