Electroretinography of acute hypoxic and increased intraocular pressure status in the dog.
A model for studying electroretinographic (ERG) responses during controlled hypoxia and acutely increased intraocular pressure (IOP) in dogs is described. The b-wave component of the ERG was critically affected before the a-wave. The critical perfusion pressure (PP) was 45 mm of Hg less than mean arterial blood pressure, and the dog will demonstrate altered b-wave amplitudes at hypoxic values of arterial oxygen pressure (Pao2) 0f 45 torr.
D000818:Animals; D001794:Blood Pressure; D002245:Carbon Dioxide / Q000097:blood; D004283:Dog Diseases / Q000503:physiopathology*; D004285:Dogs; D004596:Electroretinography / Q000662:veterinary*; D005260:Female; D000860:Hypoxia / Q000503:physiopathology / Q000662:veterinary*; D007429:Intraocular Pressure; D008297:Male; D010100:Oxygen / Q000097:blood; D012160:Retina / Q000503:physiopathology
D002245:Carbon Dioxide; D010100:Oxygen