Participation in a clinical trial in the 3 weeks preceeding the study

Symptoms of a clinically relevant illness in the 3 weeks before the first study day

Presence or history of a severe medical condition that will interfere with the study aim as judged by the clinical investigator

Other types of glaucoma, such as pigmentary glaucoma, history of acute angle closure

History of previous glaucoma surgery

Postoperative IOP ≤ 8 mmHg

Ocular inflammation or infection within the past 3 months

Topical treatment with any ophthalmic drug except anti-glaucomatous medication

Changes in Ocular Rigidity After Trabeculectomy in Patients With POAG