Transactions . nincrease in the visual acuity of the patient. Erdheim hascited an analogous case with autopsy findings, and otherpossible cases are those of Wood and of Shoemaker of Dr. William Zentmayer, Philadelphia: In connectionwith the point that Dr. Holloway brought forward ofimprovement of vision that takes place in some of these 144 Risley: Bitemporal Hemianopsia with Acromegaly. cases, I had a case of bitemporal hemianopsia underobservation for nineteen years. For seventeen years thefield remained unchanged, and vision constantly equaled -^.At the end of the seventeenth year


Transactions . nincrease in the visual acuity of the patient. Erdheim hascited an analogous case with autopsy findings, and otherpossible cases are those of Wood and of Shoemaker of Dr. William Zentmayer, Philadelphia: In connectionwith the point that Dr. Holloway brought forward ofimprovement of vision that takes place in some of these 144 Risley: Bitemporal Hemianopsia with Acromegaly. cases, I had a case of bitemporal hemianopsia underobservation for nineteen years. For seventeen years thefield remained unchanged, and vision constantly equaled -^.At the end of the seventeenth year the field graduallyincreased in size and finally became merely a concentricallycontracted field. In other words the blind halves took onfunction again. Vision rose from y^^- to 7^. The patient hadall the signs of acromegaly. Unfortunately, at death, nopostmortem could be obtained. Therefore, we do not knowthe nature of the lesion, but only that she had this remark-able recovery of vision after seventeen Fie. 1. Dr. Walter R. Parker, Detroit: I now have underobservation a case of pituitary disease or tumor, showingfailure of vision, temporal hemianopsia, and absence ofthe posterior clinoidal processes of the sella turcica, in whichI was fortunate enough to get records of fields undergoingrapid changes. The first field taken (Fig. 1) showed a right temporalcontraction of the form field to 45 degrees, and a nasalcontraction to 40 degrees. While the fields for blue andred were markedly contracted the field for green was nearlyobliterated. Vision equals f. The left field was generally contracted to 60 degrees Risley: Bitemporal Hemianopsia with Acromegaly. 145 temporally and down, and to 35 degrees to 40 degreesnasally and up, with a central scotoma somewhat irregularin shape including the area between the disc and eciuals /o- The field that was taken three weeks later showed in theright eye a temporal contraction to 30 degrees and a relativescotoma up and out


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Keywords: ., bookcentury1800, bookdecade1860, booksubjectophthalmology, bookye