![]() ![]() It can also be years before the second eye becomes affected. Rarely will it occur simultaneously in both eyes or with equal pressure. Vision problems: bumping into objects, difficulty finding things, walking cautiouslyĪs a dog ages, the clinical signs may occur in one eye and then the other. Clinical signs to look out for include:Įye pain: Rubbing up against the floor or another object or with the pawĪppearance of vessels in the white of the eye However, dogs do not show pain in the way humans can, so it may be difficult to detect when they are actually hurting. ![]() Glaucoma causes pain that’s more severe in dogs than in humans. Thus, an increase in intraocular pressure will almost always result in blindness in the affected eye because of the damage to the retina or optic nerve. This is an issue because the retina’s function is to convert images into nerve signals and the optic nerve carries these signals from the retina to the brain to produce vision. When intraocular pressure is high it can lead to damage or degeneration of the optic nerve and retina. Why is an increase in intraocular pressure a problem? When the eye is unable to drain enough of the aqueous humor fluid it can lead to glaucoma in dogs. Intraocular pressure is the fluid pressure inside the eye that is able to be maintained if the absorption or drainage and production of the aqueous humor fluid are equal. What is intraocular pressure and how is it maintained? If too much fluid is made or too little fluid is drained, the pressure of the eye, called intraocular pressure (IOP), increases and causes damage to the retina and the optic nerve. Glaucoma is a condition that causes a build-up of fluid (referred to as aqueous fluid) and pressure in the eye. ![]()
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