Fig. 20 Topiramate. A. B-scan ultrasonography shows diffuse choroidal thickening (Arrow) B. Following resolution of the angle closure, a subsequent scan shows a normal choroidal appearance with posterior vitreous collapse as the only obvious sequelae. (Reprinted from Banta JT, Hoffman K, Budenz DL, et al: Presumed Topiramate-induced bilateral acute angle-closure glaucoma. Am J Ophthalmol 132(1):112, 2001)