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Purtscher's retinopathy
Purtscher's retinopathy is a disease where part of the eye (retina) is damaged. Usually associated with severe head injuries, it may also occur with other types of trauma, such as long bone fractures, or with several non-traumatic systemic diseases. However, the exact cause of the disease is not well understood. There are no treatments specific for Purtscher's retinopathy, and the prognosis varies. The disease can threaten vision, sometimes causing temporary or permanent blindness.
It is named for the Austrian ophthalmologist, Othmar Purtscher (1852–1927), who detected it in 1910 and described it fully in 1912.
==History of the disease==
Purtscher's retinopathy was first characterized in 1910 and 1912 as a syndrome of sudden blindness after head trauma, with patches of hemorrhage and whitening of the retina in both eyes.〔 Later, it was discovered to occur after other types of trauma, such as chest trauma, and is associated with several non-traumatic systemic diseases.〔 Purtscher's retinopathy may also be associated with acute pancreatitis, vasculitis, embolization of such materials as fat and amniotic fluid, systemic lupus erythematosus, thrombotic thrombocytopenic purpura, and chronic renal failure.〔 Purtscher's retinopathy may be caused by extensive fractures of the long bones.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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