Bright-flash electroretinography and vitreous hemorrhage. An experimental study in primates.
Serial, bright-flash electroretinograms (ERGs) were recorded from rhesus monkey eyes before and after a standard posterior penetrating ocular injury and injection of 0.5 mL of blood into the vitreous. This procedure resulted in a progressive depression to virtual nonrecordability of the ERG during a period of several weeks, owing to a combined progressive increase in optical density and loss of retinal function. The ERG depression, however, was reversible, showing a remarkable recovery during the subsequent four to eight weeks. These findings suggest that in the presence of a recent, massive vitreous hemorrhage, a nonrecordable bright-flash ERG does not necessarily indicate a permanent loss of retinal function.
D000818:Animals; D004596:Electroretinography / Q000295:instrumentation / Q000379:methods*; D005128:Eye Diseases / Q000175:diagnosis; D005131:Eye Injuries / Q000150:complications; D005260:Female; D006470:Hemorrhage / Q000150:complications / Q000175:diagnosis*; D008253:Macaca mulatta; D008297:Male; D012163:Retinal Detachment / Q000150:complications / Q000175:diagnosis; D014463:Ultrasonography; D014822:Vitreous Body