P 347 Long term follow-up of retinal and choroidal structures after experimental vascular thrombosis using chloroaluminum sulfonated phthalo-cyanine and a diode laser

Methods A measuring ophthalmoscope based on the Zeiss retina camera RC 310 is coupled with a CCD device. A frame grabber digitizes the picture section with the interesting vessel segments. An adaptive algorithm recognizes the position and direction of the vessels automatically and calculates the vessel diameters. Other measuring data are recorded additionally, for example the R spike of the electrocardiogram. This additional information can be used for the measurement of the pulsating changes of the vessel diameter.