In general, intermittent diplopia evokes suspicion of ocular myasthenia gravis . However, other etiologies such as Brown syndrome or myokymia of the superior o blique may provoke intermittent diplopia. We present a ca...In general, intermittent diplopia evokes suspicion of ocular myasthenia gravis . However, other etiologies such as Brown syndrome or myokymia of the superior o blique may provoke intermittent diplopia. We present a case of intermittent dipl opia due to a tumor in the cavernous sinus. A 59-year-old patient reported int ermittent diplopia after prolonged downward gaze to the right. All other gaze di rections failed to provoke symptoms. In 1992, the diagnosis of inactive macroade noma of the pituitary gland was established and the patient underwent surgery an d radiation therapy. At physical examination, prolonged downward gaze to the rig ht of about 2 minutes provoked paresis of abduction, slight ptosis, and restrict ion of elevation on the left side, corresponding to sixth nerve palsy and palsy of the superior branch of the third nerve on the left side. MRI showed a relapse of the macroadenoma with infiltration of the cavernous sinus on the left side. The patient underwent surgery then focal radiation (gamma-knife). The clinical course was favourable and at the follow-up examination six months later, no dip lopia was reported.展开更多
草原公路路况、线形、景观具有独特性,开展草原公路环境下的驾驶员动态视觉特性方面的研究对内蒙古地区的草原道路交通建设及避免草原公路恶性交通事故具有很强的指导性。本文选取不同驾驶水平的12名驾驶员作为实验样本,以省道S101锡林...草原公路路况、线形、景观具有独特性,开展草原公路环境下的驾驶员动态视觉特性方面的研究对内蒙古地区的草原道路交通建设及避免草原公路恶性交通事故具有很强的指导性。本文选取不同驾驶水平的12名驾驶员作为实验样本,以省道S101锡林浩特赛汉塔拉至满都拉图公路为例,采用iView X HED眼动仪等设备采集驾驶员在典型草原公路以自由速度行车时的眼动参数,整理出驾驶员的眼动参数规律。本文研究结论对草原公路路域环境的绿化以及草原景观的规划与管理、草原道路的线形设计和安全行车提供了参考依据。展开更多
文摘In general, intermittent diplopia evokes suspicion of ocular myasthenia gravis . However, other etiologies such as Brown syndrome or myokymia of the superior o blique may provoke intermittent diplopia. We present a case of intermittent dipl opia due to a tumor in the cavernous sinus. A 59-year-old patient reported int ermittent diplopia after prolonged downward gaze to the right. All other gaze di rections failed to provoke symptoms. In 1992, the diagnosis of inactive macroade noma of the pituitary gland was established and the patient underwent surgery an d radiation therapy. At physical examination, prolonged downward gaze to the rig ht of about 2 minutes provoked paresis of abduction, slight ptosis, and restrict ion of elevation on the left side, corresponding to sixth nerve palsy and palsy of the superior branch of the third nerve on the left side. MRI showed a relapse of the macroadenoma with infiltration of the cavernous sinus on the left side. The patient underwent surgery then focal radiation (gamma-knife). The clinical course was favourable and at the follow-up examination six months later, no dip lopia was reported.
文摘草原公路路况、线形、景观具有独特性,开展草原公路环境下的驾驶员动态视觉特性方面的研究对内蒙古地区的草原道路交通建设及避免草原公路恶性交通事故具有很强的指导性。本文选取不同驾驶水平的12名驾驶员作为实验样本,以省道S101锡林浩特赛汉塔拉至满都拉图公路为例,采用iView X HED眼动仪等设备采集驾驶员在典型草原公路以自由速度行车时的眼动参数,整理出驾驶员的眼动参数规律。本文研究结论对草原公路路域环境的绿化以及草原景观的规划与管理、草原道路的线形设计和安全行车提供了参考依据。
