수직경선을 가로지르는 양안 기능성 이측반맹 1예

• 영문명: A Case of Functional Bitemporal Hemianopia Respecting the Vertical Meridian
• 발행기관: 대한안과학회
• 저자명: 한상범 황정민,Sang Beom Han, MD,, Jeong-Min Hwang, MD,
• 간행물 정보: 『대한안과학회지』Ophthalmological Society,volume50,number6, 957~962쪽, 전체 6쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 2009.06.15

영문 초록

Purpose: To report a case of functional bilateral hemianopia which was not associated with any organic causes. Case Summary: A 35-year-old female patient presented with bilateral disturbance of visual acuity and visual field, which had begun 8 months prior. Goldmann perimetry showed bitemporal hemianopsia respecting the vertical meridian. Pupillary response was normal, and the anterior segment, fundus, and optic nerve were also normal bilaterally. However, the tangent screen test and Humphrey visual field test showed a widening of hemianopia not respecting the vertical meridian, and the crossing of isopters at 1 m and 2 m with the tangent screen test. In addition, multifocal electroretinogram and multifocal visual evoked potential did not reveal any abnormal findings corresponding to the bitemporal hemianopia. Brain magnetic resonance imaging showed no abnormal findings in the orbit and brain. Conclusions: Bitemporal hemianopsia can be developed functionally, although it may be rare. Repetition of various visual field tests and use of multifocal electrophysiologic studies can be helpful in the differential diagnosis.

키워드

Bitemproal hemianopia, Functional visual field defect, Multifocal electrophysiologic study