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Retinal hemorrhage (UK English: retinal haemorrhage) is a disorder of the eye in which bleeding occurs in the retina, the light sensitive tissue, located on the back wall of the eye. [1] There are photoreceptor cells in the retina called rods and cones , which transduce light energy into nerve signals that can be processed by the brain to form ...
Vitreous hemorrhage may be diagnosed when symptoms such as floaters, haziness, perception of shadows, or cobwebs are present. It is usually painless. Visual acuity may be affected variably depending on the amount of blood in the visual axis. Diagnosis is made with slit lamp examination and confirmed with optical coherence tomography (OCT).
Advanced retinopathy lesions, such as microaneurysms, blot hemorrhages and/or flame hemorrhages, ischemic changes (e.g. "cotton wool spots"), hard exudates and in severe cases swelling of the optic disc (optic disc edema), a ring of exudates around the retina called a "macular star" and visual acuity loss, typically due to macular involvement.
Referred to as a form of retinal myopathies, cotton wools spots are commonly found to be a secondary manifestation to diseases like diabetes, hypertension, and AIDS. [1] Cotton wool spots have become one of the hallmarks of pre-proliferative diabetic retinopathy, a condition caused by damaged blood vessels in the retina due to high blood sugar ...
Optical coherence tomography angiography ... In diabetic retinopathy (DR), OCTA was shown to resolve previously established markers of severe disease (i.e., vitreous ...
Diabetic retinopathy (also known as diabetic eye disease) is a medical condition in which damage occurs to the retina due to diabetes.It is a leading cause of blindness in developed countries and one of the lead causes of sight loss in the world, even though there are many new therapies and improved treatments for helping people live with diabetes.
Examination findings may include microaneurysms, cotton wool spots, dot and blot hemorrhages, and neovascularization. [ 8 ] [ 10 ] Dilated fundus exam is the preferred method of diagnosis, as undilated exam may be too limited to visualize lesions or neovascularization that are more peripheral.
Macular telangiectasia type 2 is commonly under-diagnosed. The findings may appear very similar to diabetic retinopathy, and many cases have been incorrectly ascribed to diabetic retinopathy or age-related macular degeneration. Recognition of this condition can save an affected patient from unnecessarily undergoing extensive medical testing and ...
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