retinopathy

retinopathy /ret·i·nop·a·thy/ (ret?i-nop´ah-the) any noninflammatory disease of the retina.

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circinate retinopathy  a condition in which a circle of white spots encloses the macula, leading to complete foveal blindness.

diabetic retinopathy  retinopathy associated with diabetes mellitus, which may be of the background type, progressively characterized by microaneurysms, intraretinal punctate hemorrhages, yellow, waxy exudates, cotton-wool patches, and macular edema, or of the proliferative type, characterized by neovascularization of the retina and optic disk, which may project into the vitreous, proliferation of fibrous tissue, vitreous hemorrhage, and retinal detachment.

exudative retinopathy  that marked by masses of white or yellowish exudate in the posterior part of the fundus oculi, with deposit of cholesterin and blood debris from retinal hemorrhage, and leading to destruction of the macula and blindness.

hypertensive retinopathy  that associated with essential or malignant hypertension; changes may include irregular narrowing of the retinal arterioles, hemorrhages in the nerve fiber layers and the outer plexiform layer, exudates and cotton-wool patches, arteriosclerotic changes, and, in malignant hypertension, papilledema.

retinopathy of prematurity  a bilateral retinopathy typically occurring in premature infants treated with high concentrations of oxygen, characterized by vascular dilatation, proliferation, tortuosity, edema, retinal detachment, and fibrous tissue behind the lens.

proliferative retinopathy  the proliferative type of diabetic retinopathy.

renal retinopathy  a retinopathy associated with renal and hypertensive disorders and presenting the same symptoms as hypertensive retinopathy.

stellate retinopathy  a retinopathy not associated with hypertensive, renal, or arteriosclerotic disorders, but presenting the same symptoms as hypertensive retinopathy.

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ret·i·nop·a·thy (rtn-p-th)

n.

A noninflammatory degenerative disease of the retina.

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retinopathy (ret´nôp´thē),

n a disease of the retina, excluding retinitis. Often named for the underlying condition which causes it, such as diabetic retinopathy.

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retinopathy

any noninflammatory disease of the retina; occurs in systemic disorders, e.g. nephritis, diabetes mellitus and in a number of poisonings in agricultural animals. Examples are poisoning by Astragalus, Oxytropis, Pteridium spp.

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diabetic retinopathy

retinal manifestations of diabetes mellitus, including microaneurysms and punctate exudates, occur in dogs but are often obscured by cataract formation.

hypertensive retinopathy

that associated with hypertension; seen in dogs and cats. There is sudden loss of vision, retinal hemorrhages and detachment, and sometimes glaucoma.

nutritional retinopathy

may occur with deficiency of vitamin A or E, or taurine.

senile retinopathy

retinal thinning, cyst formation, atrophy and fibrosis occur in aged dogs and horses.

toxic retinopathy

see bright blindness.