如果你一只眼失明，你只会失去约五分之一的视力(但会失去全部的深度知觉)。
If you go blind in one eye, you'll only lose about one-fifth of your vision (but all your depth perception).
有五位患者9只眼在接受雷射施术后，完全无反应，而在施术后两周内立即手术。
Among them 9 eyes of 5 patients get little response and need surgery within 2 weeks.
有五位患者9只眼在接受雷射施术后，完全无反应，而在施术后两周内立即手术。
Among them 9 eyes of 5 patients get little response and need surgery within 2 weeks.
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