[Occlusion site and occlusion time of central artery occlusions: diagnostic references caused by changes in the collapse phenomenon of the central artery in ophthalmodynamometry].

The collapse of the central retinal artery in ophthalmodynamometry is typically altered in cases of central retinal artery occlusion. The alterations of the collapse phenomenon can be used to obtain the following information: (1) location of the occlusion; (2) duration of the occlusion. This information is of great value in determining the pathogenesis and therapy of central retinal artery occlusion.