Idiopathic Macular Telangiectasia

Idiopathic Macular Telangiectasia,Lawrence A. Yannuzzi,Anne M. C. Bardal,K. Bailey Freund,Kuan-Jen Chen,Chiara M. Eandi,Barbara Blodi

Idiopathic Macular Telangiectasia   (Citations: 39)
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Methods: A combined retrospective and prospective analysis of newly diagnosed patients seen over a period of 3 years. Patients were identified based on the Gass- Blodi classification and were studied with biomicros- copy, fluorescein angiography, and optical coherence tomography. Results: Ten patients associated with aneurysmal tel- angiectasia(Gass-Blodigroup1)and26patientswithperi- foveal telangiectasia (Gass-Blodi group 2) were re- cruited. None with occlusive telangiectasia (Gass-Blodi group3)wereidentified.Newobservationsbasedonclini- cal, fluorescein angiographic, and optical coherence to- mographic findings were made. Conclusions: Our series was similar to that in the Gass- Blodi study in terms of frequency. New observations in groups1and2haveexpandedourknowledgeoftheclini- cal spectrum of these disorders. A simplified classifica- tion termed idiopathic macular telangiectasia with 2 dis- tinct types (type I, or aneurysmal telangiectasia, and type II, or perifoveal telangiectasia) was proposed to produce abetterunderstandingoftheentitiesandtoenhanceteach- ing and research. The third type, occlusive telangiectasia, has been omitted from our classification based on its rar- ity and presence of capillary nonperfusion rather than macular telangiectasia as the primary abnormality.
Published in 2006.
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