dog gone blind Does anyone know what might cause a dog to suddenly go blind. My yorkie is fine. But my Big outside dog who is 7 years old suddenly has gone blind. Her pupils are fixed and dilated. Could it be the flea meds we used a couple of months ago. (Comfortis), Could it be a disease...... I'm afraid for my yorkie who is vaccinated up to date but uses the same backyard. I am very sorry for Lady whom we've loved for 7 years and I dont know what to do for her |