Characterization of posterior corneal changes in primary open angle glaucoma patients, using Scheimpflug examination.

A cohort of primary open angle glaucoma (POAG) patients is submitted to Scheimpflug Pentacam examination. The results are compared with a control group of age and central corneal thickness matched healthy subjects

Inclusion Criteria:

• Primary open angle glaucoma, with the diagnosis supported on structural and functional complementary exams according to the current European Glaucoma Society guidelines
• Healthy subjects from the General Ophthalmology Outpatient Clinic

Exclusion Criteria:

• age inferior to 18 years old
• primary closed angle glaucoma
• secondary open angle glaucoma
• previous intra-ocular surgery
• known or suspected corneal disease
• previous intra-ocular inflammation
• previous ocular trauma

Cases from the Glaucoma Outpatient Clinic and controls from the General Ophthalmology Outpatient Clinic from a single ophthalmological center.