It consists of the gradual reduction of vision as the cells of the retina degenerate; blindness is first observed at night, then slowly progresses to daytime blindness in a matter of weeks or sometimes days.
Progressive retinal atrophy usually manifests itself in pets between 3 and 5 years of age and its origin is hereditary in certain breeds.
It is diagnosed by direct and indirect ophthalmic exploration which reveals a decrease in the caliber of the veins and arteries of the retina until their disappearance, an increase in the reflex of the fundus of the eye, permanent dilation of the pupil and many other internal changes which are identified by means of specific studies and specialized apparatus.
There is no treatment for this disease of the retina.
