Familial bilateral macular aneurysmal telangiectasia.
BACKGROUND
Idiopathic macular aneurysmal telangiectasia or so-called Coats' disease is usually a unilateral retinal vascular abnormality in males. It has been rarely reported to occur bilaterally with and without associated abnormalities, and its occurrence in a familial setting is even rarer.


OBJECTIVE
This is a report of a familial occurrence of bilateral macular aneurysmal telangiectasia or Coats' disease in a father and daughter.


RESULTS
A 44-year-old woman and her father had bilateral macular angiopathy with macular telangiectasia, aneurysms, ischemia, and leakage, including lipid deposition. The clinical findings were confirmed with fluorescein angiography and optical coherence tomography. There was no history of systemic disease associated with a retinal vascular abnormality.


CONCLUSIONS
To our knowledge, this is the first report of a familial occurrence of bilateral macular aneurysmal telangiectasia or Coats' disease in a daughter and father without associated systemic disease.
From *The LuEsther T. Mertz Retina Research Center of Manhattan Eye, Ear, and Throat Hospital, New York, and Vitreous-Retina-Macula Consultants of New York, New York; and †The Retina Vitreous Surgeons of Central New York, P.C., New York, New York.
Hideki
H
Koizumi
Bryan K
BK
Rutledge
Lawrence A
LA
Yannuzzi