Inclusion Criteria:  Age ≥ 18 years Diagnosed with POAG (primary open-angle glaucoma), PEX (pseudo-exfoliation glaucoma) or OHT (ocular hypertension) Difference between patients' and staff's iCare Home® measurements less than 5 mmHg at Baseline Difference between Goldman Applanation tonometry (GAT) and patient's highest iCare Home® measurements less than 7 mmHg at baseline Monitoring over at least two days  Exclusion Criteria:  More than one measurement with iCare Home® tonometer below 5 mmHg Missing more than one daily measurement with iCare Home® tonometer