Pradat-Diehl P, Masure M C, Lauriot-Prévost M C, Vallat C, Bergego C
Service de rééducation, Hôpital de la Salpêtrière, Paris.
Rev Neurol (Paris). 1999 May;155(5):375-82.
Impaired vision and cerebral blindness were observed in a patient who had suffered brain trauma. One year after the trauma, the impairment was characterized by low visual acuity, visual field restricted to central tunnel vision and impaired recognition of objects, line drawings, colors and faces. Vision improved six years after the brain trauma with more rapid recognition of objects and line drawings, increased visual acuity and broadening of the visual field. Reading was possible at this time. However, prosopagnosia remained very severe and was still the primary complaint of the patient. Improvement of visual function continuing for several years after a brain injury is discussed on the basis of cognitive and neurophysiological knowledge. The place of rehabilitation is discussed. Functional improvement is explained by extrastriate cortical afferences and the cortical network of visual pathways.
在一名脑外伤患者中观察到视力受损和皮质盲。外伤一年后，损伤表现为视力低下、视野局限于中心管状视野以及对物体、线条图、颜色和面孔的识别受损。脑外伤六年之后，视力有所改善，对物体和线条图的识别更快，视力提高，视野拓宽。此时患者能够阅读。然而，面孔失认症仍然非常严重，仍是患者的主要诉求。基于认知和神经生理学知识，讨论了脑损伤后视觉功能持续数年改善的情况。还讨论了康复的作用。视觉功能的改善可通过纹外皮质传入神经和视觉通路的皮质网络来解释。
