To assess the reproducibility of Spectral-Domain-OCT (SD-OCT) retinal nerve fiber layer thickness (RNFL) thickness measurements in healthy volunteers and patients with glaucoma and to compare these results to conventional Time-Domain-OCT (TD-OCT).

• Trial with medical device

Inclusion criteria: control group:

age 18yo or older, healthy

glaucom group: age 18yo or older, diagnosis of primary open angle glaucoma (POAG)

Exclusion criteria: Exclusion criteria in the control group were history of glaucoma, history of any other ocular disease, or intraocular pressure greater than 21mmHg. Exclusion criteria in the glaucoma group were history of other optic neuropathies.

or severe optic media opacities.