Summary of general diagnostic criteria
| Condition | Diagnostic criteria |
|---|---|
| Primary open angle glaucoma (POAG) | Open anterior chamber angle, glaucomatous visual field and/or optic disc defects. |
| Normal tension glaucoma (NTG) | Open anterior chamber angle, glaucomatous visual field and/or optic disc defects and intraocular pressure less than 21 mm Hg. |