farsightedness

基本解釋

If little close work is done, this elongation process normally stops with only a slight amount of farsightedness left.
如果輕度的近距離工作，只要輕度的遠(yuǎn)視調(diào)節(jié)，這個(gè)伸長(zhǎng)過(guò)程就可以正常停止。
Photorefractive keratectomy (PRK). PRK is sometimes used if you have a low to moderate degree of nearsightedness or farsightedness, or if you have nearsightedness with astigmatism.
屈光性角膜切除術(shù)（PRK）：當(dāng)你有低于中等度數(shù)的近視或者遠(yuǎn)視，或者近視加散光，有時(shí)會(huì)選擇PRK。
Farsightedness is the opposite, in a way: A shorter-than-average eyeball or too-flat cornea focuses light behind the retina instead of on it, making near vision and sometimes distant vision blurry.
遠(yuǎn)視在某種程度上則相反，是較正常短些的眼球前后徑或者太平坦的角膜使光線聚焦于視網(wǎng)膜后而不是之上，這導(dǎo)致近景視覺(jué)模糊和有時(shí)的遠(yuǎn)景視覺(jué)模糊;

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