That is the newly developed eye-catching late-model double-decker bus in London.
这就是伦敦推出的极具看点的新型双层巴士。
Patients whose visual acuity (VA) before surgery was< 6/60 in the better eye comprised 47% of the total case mix in poorly developed countries and 1% in developed countries (P < 0.001).
不发达国家中,手术前较好眼睛的视力低于6/60的患者占总病例组合的47%,而在发达国家中此比例仅为1%(P<0.001)。
But researchers at the Massachusetts Institute of Technology have developed a new way to identify eye disorders with a smartphone.
但是,麻省理工学院的研究人员已经发明了一种新的方法:用智能手机诊断眼科疾病。
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