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To the Editor:
—In his interesting article entitled "Defects in Visual Fields Produced by Hyaline Bodies in the Optic Disks" (Arch.Ophth.32:56 [July] 1944), Dr. C. Wilbur Rucker presents the changes in the visual fields in 5 cases of hyaline bodies in the optic disk. The fields presented were remarkably similar to each other and to the fields characteristic of glaucoma simplex. Since the author has not drawn attention to this fact, I believe it should be pointed out. In 4 of the 5 cases there were defects in the lower nasal fields, and in 2 cases, Seidel scotomas; examination in case 5 revealed a nasal step in each eye; in case 4, baring of the blindspots, and in case 3, loss of the nasal fields and ring scotomas. If the field defects were analyzed for the internal isopters by test objects of smaller angles, viz., 1/1,000, 1/2,000,