Endothelial Dystrophy – The cornea is normally the transparent “windshield” of the eye, serving to protect the internal structures of the eye while allowing light to enter for vision. The endothelium is a single layer…
The pupillary membrane is a fetal structure that covers the pupil prior to birth. It is supposed to resolve (go away) shortly after birth. Sometimes part or all of it will persist. This is known…
Distichiasis is a condition where eyelashes emerge from a structure in the eyelid (meibornian gland) which does not normally produce hairs. These “extra eyelashes” emerge so close to the eye that they can contact the…
What is Glaucoma and How Does it Develop Glaucoma is a group of neurodegenerative diseases with the most consistent clinical finding being increased intraocular pressure (IOP). Increased IOP is painful and causes damage to the…
By Dr. Lisa Meek, Member ACVO A nutritional cataract is caused by either a deficiency or excess of a nutrient resulting in a loss of transparency of the lens. Nutritional cataracts have been identified in…
Definition of Cataracts The word cataract literally means ‘to break down’. This breakdown refers to the disruption of the normal arrangement of the lens fibers or its capsule, which results in the loss of the…
There are 2 classifications of glaucoma – Primary and Secondary. Primary glaucoma occurs without previous trauma or ocular disease, and will eventually affect both eyes. Secondary glaucoma is a consequence of some other disease, such…
The canine eye has the same general design as the human eye. Light travels through the cornea, through the watery aqueous chamber, enters the pupil, traverses through the lens, then the vitreous chamber, and finally…
Continuous muscle fibre activity was observed in a crossbred dog, a Yorkshire terrier, a border collie and three Jack Russell terriers. The clinical signs consisted of episodes of generalised myokymia which developed into muscle stiffness…