In case their IOP level is yet to be influenced by the washout (less than 3 mmHG increase), an additional visit (2b, 4 weeks after first screening visit) will be scheduled and performed with the patient. In case the patient IOP was increased by less than 3 mmHG in visit 2b, or either the patient IOP is >30 mmHg for glaucoma patients or >32 mmHg for ocular hypertension patients (exit criteria) that patient will discontinue the study and will be recorded as screening failure.