最终导致病人在较年轻时就出现严重的视觉损伤，而且目前还没有有效的治疗方法。
This results in severely impaired vision from a very young age and there are currently no effective treatments available.
包括脊髓损伤的运动员，现代残疾人奥运会邀请有视觉缺陷、大脑性麻痹症以及截肢患者等参加比赛。
As well as athletes who have suffered spinal injuries, the modern Paralympics invites competitors with visual impairment, athletes with cerebral palsy, and amputees to participate in the games.
由美国开发的BrainPort视觉系统，通过把光的图像转换成香槟味的刺激感觉，帮助视力损伤的人了解外部环境。
The BrainPort vision system, developed in the US, transforms light images into champagne-like tingling sensations to help sufferers visualise their surroundings.
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