Objective: To provide a visual acuity chart for Chinese low vision patients.
目的：研制一种适合我国眼科临床使用的低视力对数视力表。
That is right, please look at the visual-chart, let us check the visual-acuity again.
好的，请看视力表，让我们再查一次双眼视力。
That is right, please look at the visual-chart, let us check the visual-acuity again.
好的，请看视力表，让我们再查一次双眼视力。
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