Influence of Trabeculectomy and Phaco-trabeculectomy on Corneal Astigmatism

University of Zurich (UZH)

Status: Unknown

Conditions: Glaucoma; Astigmatism

Treatments: Device: Refraction; Device: Corneal Topography; Device: Biometry

Study type: Interventional

Funder types: Other

Identifiers

NCT02945202

Astigmatismus2017

Details and patient eligibility

About

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

Full 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.

Enrollment: 150 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Trabeculectomy or Phaco-Trabeculectomy between 01/2017 and 12/2017
• Age ≥18 years

Exclusion criteria

• Acute or chronic corneal diseases

Trial design

Primary purpose: Treatment

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

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150 participants in 1 patient group

All Eyes

Other group

Description:

All eyes undergo the same interventions. These are the following examinations: Biometry, Refraction and Corneal Topography. The examinations take place 6 months after surgery

Treatment:

Device: Biometry

Device: Refraction

Device: Corneal Topography