retinopathy /ret·i·nop·a·thy/ (ret″ĭ-nop´ah-the) any noninflammatory disease of the retina.
Diabetic retinopathy
diabetic retinopathy,
diabetic retinopathy
diabetic retinopathy
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.
| diabetic retinopathy n. Retinal changes occurring in long-term diabetes and characterized by punctate hemorrhages, microaneurysms, and sharply defined waxy exudates. |
Diabetic retinopathy
A condition where the tiny blood vessels to the retina, the tissues that sense light at the back of the eye, are damaged, leading to blurred vision, sudden blindness, or black spots, lines, or flashing lights in the field of vision.
diabetic retinopathy,
a disorder of retinal blood vessels. It is characterized by capillary microaneurysms, cotton-wool spots, hemorrhage, exudates, and the formation of highly permeable new vessels. The disorder occurs most frequently in patients with long-standing poorly controlled diabetes mellitus. Repeated hemorrhage may cause permanent opacity of the vitreous humor, and blindness may eventually result. Photocoagulation of damaged retinal blood vessels by a laser beam may be performed to decrease retinal ischemia and to prevent hemorrhage from the vessels.
diabetic retinopathy
(ret´inop´
thē),
n the complication to the eye that can be caused by diabetes mellitus, some of which may result in blindness.
thē), n the complication to the eye that can be caused by diabetes mellitus, some of which may result in blindness.
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.
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.
diabetic retinopathy
Ophthalmology A condition characterized by progressive deterioration of the retina with microaneuryms, hemorrhage, neovascularization; it is the major cause of visual impairment in the US < age 60; at 20 yrs, 40% of
Pts with type 1 DM and 5% of those with type 2 DM have proliferative DR; clinically significant macular edema occurs in 10–15% of Pts with DM for > 15 yrs Management Glycemic control, photocoagulation, vitrectomy
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