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Evaluation of optic disc blood flow of intraconal orbital tumors using laser speckle flowgraphy

An orbital tumor can alter the blood hemodynamics and cause a change to optic disc blood flow. We evaluated the bilateral optic disc blood flow of patients with unilateral orbital tumors using laser speckle flow graphy. The optic disc blood flow of the tumor side significantly decreased or increased compared with the optic disc of the fellow eye, even in patients with subtle or absent clinical symptoms and signs. Laser speckle flowgraphy of the optic disc showed the alteration of orbital hemodynamics with tumors and could be useful to suggest the existence of the orbital tumors.

Author(s): Hideki Chuman, Takako Hidaka, Nobuhisa Nao-i