With the new software tool (EDI, enhanced depth imaging) of the Spectralis® spectral-domain optical coherence tomography (SD-OCT) it is possible to visualize and measure the choroidal thickness. In glaucoma a vascular component is known. Therefore a difference of choroidal thickness in glaucoma patients and healthy controls is proposed.

• Trial with medical device

Inclusion criteria: for both groups (glaucoma study group and control group):

men and women of at least 50 years of age

for the glaucoma study group: diagnosis of primary open angle glaucoma (POAG)

Exclusion criteria: for both groups (glaucoma study group and control group):

• less then 50 years of age
• any pathology of the central retina
• any optic nerve disorder other then glaucoma
• retinal vascular disorder

for the glaucoma study group: other glaucoma diagnosis then primary open angle glaucoma

for the control group: any diagnosis of glaucoma

patients and controls are selected out of our primary care clinic