Influence of Trabeculectomy and Phaco-trabeculectomy on Corneal Astigmatism

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

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.

Inclusion Criteria:

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

Exclusion Criteria:

• Acute or chronic corneal diseases