Aim: The occurrence of optic disk rim haemorrhages and association with venous occlusions suggest that vascular problems, perhaps involving the veins occur in glaucoma Downstream narrowing of the retinal veins is known to cause an increase in IOP required to induce venous pulsation. Methods: Humphrey 24-2 SITA standard visual field records were examined calcu- Aim: The occurrence of optic disk rim haemorrhages and association with venous occlusions suggest that vascular problems, perhaps involving the veins occur in glaucoma Downstream narrowing of the retinal veins is known to cause an increase in IOP required to induce venous pulsation. Methods: Humphrey 24 -2 SITA standard visual field records were examined calcu-