[問題] 關於驗光時散光的軸度
前幾天去驗光,
其中一項是戴上鏡片要我自行旋轉調整最清晰的角度,
我想這是在測散光的軸度吧?
個人是覺得有一定範圍都蠻清晰的(比如30~60度)
那最後可能停在50度左右說這是最清晰,這樣會不會配出來的眼鏡不合?
我覺得我蠻難驗光的,店員做很多測試,
哪片鏡片比較清晰?紅色綠色哪個比較清楚等問題,
我都覺得差不多,囧
聽說散光軸度會改變,那不就每隔一段時間就要重配眼鏡?
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