除了活动及放松您的眼睛，您也必须照顾您的矫正镜片。
Besides exercising and relaxing your eyes, you also need to take care of your corrective lenses.
它们也会判断出你看清事物所需的矫正镜片的屈光度数。
He or she will also determine the power of any lens correction needed to provide clear vision.
取景器的目镜是一片-1的矫正镜片（适合大多数普通视力）。
The viewfinder eyepiece has a built-in –1 correction lens (suitable for normal vision).
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