Abstract
The influence of electri-cal stimulation of the preganglionic cervical nerve on the intraocular pressure and the intraocular dynamics of rabbits has been investigated. Sustained stimulation was found to cause a significant decrease in the equilibrium pressure of the eye. Stimulation was found to decrease the rate of secretion of the aqueous humor but not to influence significantly the rate of drainage of aqueous humor. The rate of flow of blood through the ciliary processes was determined by the ascorbic acid clearance technique and the results indicated a maximal decrease of 50% during stimulation of the cervical sympathetic nerve.