Collie Health Information
Collie Eye Anomaly
	Collie eye anomaly (CEA) has long been a problem in collies, although it is not exclusive to collies.  Through screening and responsible breeding  there has been some success in decreasing the severity of the problem although there has been minimal success in decreasing the number of collies with the problem. Collie Eye Anomaly is an inherited disease characterized by abnormal development of the eye. Mild cases are characterized by lack of development of the choroid, which is the vascular layer of the back of the eye (choroidal hypoplasia) , and vascular tortuosity.  In more severe cases, the dog may have patchy areas where the choroid is missing and bare sclera is visible. Colobomas are outpouches of the sclera, and may be found in the most serious presentation of CEA. The colobomas may be small or large and may affect the optic disc or be adjacent to the optic disc. Dogs with colobomas have a higher incidence of development of a retinal detachment, or retinal hemorrhage, or both which can result in blindness.
Ivermectin Sensitivity in Collies:
	Are you aware that some collies carry a mutant gene that causes sensitivity to the medication "Ivermectin" found in some heartworm medications? This sensitivity has been know to cause death in our beloved collies. We use "Interceptor" or "Revolution" for our Collies. Please remember this. You can read more by visiting The Collie Club of America website.
Immodium or other substrates for P-Glycoprotein
	This drug is commonly used to treat Diarrhea in humans it should not be used to treat dogs especially Collies, it works by temporarily paralyzing the lower intestines in humans. In dogs however, especially Collies, it could well lead to coma followed by death.
Helpful Link
	http://www.collie-rescue.org.uk/Medicines/dangerous_medicines.htm