astigmatism
US /əˈstɪɡ.mə.tɪ.zəm/
UK /əˈstɪɡ.mə.tɪ.zəm/
名詞
散光
a defect in the eye or in a lens caused by a deviation from spherical curvature, which results in distorted images, as light rays are prevented from meeting at a common focal point
範例:
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She has severe astigmatism and needs special corrective lenses.
她有嚴重的散光，需要特殊的矯正鏡片。
•
Many people don't realize they have astigmatism until they get an eye exam.
許多人直到進行眼科檢查才意識到自己有散光。