| Stage | Description | Ocular feature | Treatment | |||
| PRP | Anti VEGF | Anti-glaucoma medicine | Glaucoma Filtration Surgery | |||
| I | Pre-glaucoma | NVI++− | Yes | Yes | No | NO |
| II | Angle open | Elevated Intraocular pressure NVA+++± | Yes | Yes | Yes | ± |
| III | Angle closed | Elevated Intraocular pressure NVA+++± | Yes | Yes | Yes | Yes |