In Merles there are two colors of merles a blue merle which is a blue-gray color that is carried over through black and a red merle which is a dilute chocolate in the doodle breed, for some reason when produced in the doodle the red comes through as chocolate and really is a chocolate merle by color.
Chronic sinusitis, or sinus infections, cause a stuffy or runny nose, tooth pain, fever, sore throat and more. Migraines are a common type of headache that can cause severe pain, aura or flashes in vision, and tingling. Tension headaches, caused by muscle tension, are marked by pain, pressure and tightness around the head. Ocular migraine usually refers to a type of migraine that can cause temporary blindness in one eye.
Rating Newest Oldest. Best Answer: Flashes of light in your vision are a symptom of a retinal detachment. This is a very serious vision-threatening condition where the back of the eye separates from where it is attached. Go to seen an optometrist ASAP (like TODAY) and let them know you are having this symptom when you call to make an appointment. They will fit you in because this is considered a vision emergency.