facility of aqueous outflow and the rate of aqueous flow in normotensive diabetics

The autonops computerized tonometer-tonogram has been used to estimate the facility of aqueous outflow as well as the rate of aqueous flow in 100 normotensive eyes of 62 diabetic patients. Additional data obtained during the procedure were the ocular rigidity and the P/C value. Results obtained were compared to those of 30 normotensive eyes of 19 nondiabetic subjects of comparable age. Although the outflow facility of the diabetics turned out to be significantly lower than that of the controls, yet both had comparable initial intraocular pressures. This is due to the lower rate of aqueous flow in the eyes of diabetics. Furthermore, ocular rigidity is significantly higher than average in diabetic eyes

Ophthalmodynamometric readings in neuroretinal vascular occlusions

Ophthalmic artery pressure was bilaterally measured in 30 patients with central retinal artery occlusion, retinal vein thrombosis [central or branch] and anterior ischaemic optic neuropathy. An age matched control group of 10 subjects was also included. Ophthalmic artery pressures, both systolic and diastolic were remarkably lower on the affected side than on the other side or the control eyes. A systemic vasodilator [Stugeron 25 mg, 3 tablets day] was administered to 14 patients and the ophthalmic artery pressure was remeasured two weeks later. The post treatment readings revealed a beneficial effect of systemic vasodilators on blood flow in the territory of the ophthalmic artery