The development of cerebral angiography1 provided a new approach to the study of vessel systems throughout the body, but this valuable technique has not been successfully applied to the intact living eye. The present study uses the angiographic method to visualize the intraocular venous circulation of the cat.
Nonradiographic injection techniques, previously employed in studies of the intrascleral vessels related to the anterior chamber angle2-5 and the uveal circulation,6 can not be used in the intact living eye. The clinical ocular application of angiography is at present limited to the demonstration of the vessels of the orbit7 and, in some carotid angiograms, a fine crescent in the posterior part of the orbit which represents choroidal venous filling.7,8 It has been reported that radiographs of rabbit eyes taken before and during carotid injection of thorium dioxide (Thorotrast) show "a difference" but no definite vessels.9 Also,
COHAN BE. Experimental Intraocular Venography. AMA Arch Ophthalmol. 1960;63(3):489-502. doi:10.1001/archopht.1960.00950020491007