LASIK 眼科手术改变了你的角膜的形状——角膜是覆盖在你的瞳孔和你的眼睛的有色部分（虹膜）上的弧形透明膜。
LASIK eye surgery changes the shape of your cornea—the transparent membrane that arcs over your pupil and the colored part of your eye (iris).
瞳孔有不正常尺寸或者形状。
用手电光斜照角膜，检查角膜浊斑。检查瞳孔大小、形状和对等。检查虹膜否对称。
E. Inspect cornea for opacities by shining light at an angle toward the cornera. Check pupils for size, shape, and equality. Inspect iris for symmetry.
LASIK眼科手术通过改变角膜的形状矫正视力。角膜是覆盖在瞳孔和虹膜上的弧形的透明膜。
LASIK eye surgery changes the shape of your cornea - the transparent membrane that arcs over your pupil and the colored part of your eye.
它瞳孔的形状和猫一模一样。
就是我们今天所说的瞳孔和虹膜，其形状像圆圆的苹果，在眼睛的中心。
Well, it's what we know today as the iris and pupil, round like an apple, at the center of the eye.
研究了人眼瞳孔、眼眶的位置、形状及其与视线方向的关系。
The locations of pupils, the shapes of eye socket and the relationship between theirs and the gazing direction are discussed.
马通过转动头的角度使眼镜聚焦，不象人那样通过改变瞳孔的形状聚焦。
A horse focuses its eye by changing the Angle of its head, not by changing the shape of the lens of the eye, as humans do.
马通过转动头的角度使眼镜聚焦，不象人那样通过改变瞳孔的形状聚焦。
A horse focuses its eye by changing the Angle of its head, not by changing the shape of the lens of the eye, as humans do.
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