variants: also Coats disease or Coat's disease or Coats's disease \ ˈkōts-, ˈkōt-səz- \
Medical Definition of Coats' disease
: a chronic, progressive disease of the eye that is caused by the accumulation of fluid and blood debris beneath the retina from leaking, telangiectatic blood vessels, that is typically marked by a whitish mass in the pupil of one eye, and that may lead to retinal detachment and to blindness if untreated Three months later, he was diagnosed by another doctor as having Coats' disease, a congenital, nonhereditary eye disorder characterized by abnormal development of the blood vessels behind the retina that can cause full or partial blindness …— B. J. Pollock, The Houston Chronicle, 27 Jan. 2011 Coats' disease is a developmental vascular disease of the retina. … It is more common in males, is usually detected early in childhood, and cannot be recognized by any noninvasive test.— David S. Walton et al., The New England Journal of Medicine, 16 Feb. 2006
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