A.長(zhǎng)期無(wú)限制使用人工淚液B.更換鏡片設(shè)計(jì)C.改善環(huán)境因素D.使用淚點(diǎn)栓塞術(shù)
A.0.25~0.5um B.0.1~0.2um C.0.25~0.5nm D.0.5~1.0nm
A.小數(shù)差、同符號(hào)、轉(zhuǎn)向 B.十字圖、符號(hào)異、同向性 C.代數(shù)和、變號(hào)、轉(zhuǎn)向 D.只加不減、變號(hào)、同向