Nonuniform pressure generation in the optic chiasm may explain bitemporal hemianopsia.


PURPOSE To measure the pressure in the temporal and central aspects of the chiasm simultaneously during compression of the optic chiasm from below with an expanding simulated tumor. DESIGN Experimental study. METHODS Craniotomies were performed on 5 unfixed cadaveric specimens ranging in age from 49 to 89 years, and the optic chiasm was exposed. After a… (More)


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