Meienberg O
Neurologische Universitätsklinik Basel.
Klin Monbl Augenheilkd. 1988 Feb;192(2):108-12. doi: 10.1055/s-2008-1050084.
Patients with homonymous hemianopia are quite differently handicapped in daily life. While residual visual functions in the blind hemifield can be responsible for such differences in visual orientation, compensatory oculomotor mechanisms or the presence of additional visual hemineglect may also play a role. In order to find objects in their blind hemifield such patients essentially employ three oculomotor searching strategies: A "staircase" strategy, an "overshoot" strategy, and a "predictive" strategy. Patients with additional visual hemineglect, however, are neither able to use the predictive strategy, nor can they develop an overshoot strategy with time. Oculographic criteria compiled previously by the present authors were employed in 19 cases with homonymous hemianopia and/or visual hemineglect to demonstrate the possibility of an objective and quantitative delimitation of these two disorders. The practical importance of such a delimitation is that patients with hemineglect are much more handicapped, but ignore or underestimate their handicap.
患有同向偏盲的患者在日常生活中面临的障碍差异很大。虽然盲侧半视野的残余视觉功能可能导致视觉定向方面的这些差异，但代偿性眼球运动机制或额外的视觉半侧忽视的存在也可能起作用。为了在其盲侧半视野中找到物体，这些患者主要采用三种眼球运动搜索策略：“阶梯式”策略、“过冲”策略和“预测性”策略。然而，患有额外视觉半侧忽视的患者既无法使用预测性策略，也无法随着时间的推移形成过冲策略。作者之前编制的眼动图标准被用于19例同向偏盲和/或视觉半侧忽视患者，以证明对这两种疾病进行客观和定量界定的可能性。这种界定的实际重要性在于，患有半侧忽视的患者残疾程度要高得多，但他们忽视或低估了自己的残疾状况。
