Vignetting and distortion are both corrected excellently for a lens of this speed.
渐晕和变形都纠正了这种速度镜头出色。
Conclusions Patients with ametropia, esp. high myopia or anisometropia, should be provided a corrected glasses or contact lens in time.
结论对于屈光不正，特别是高度近视或屈光参差者应及时配镜矫治，框镜矫正不足时应选择接触镜。
By combining DO lens elements with normal refraction elements, color aberration is corrected to levels even higher than is possible with fluorite elements.
DO镜片与普通的折射玻璃结合在一起，色散的校正水准甚至高于萤石镜片。
Methods Examing the corrected visual acuity, binocular refraction state, simultaneous vision, fusion faculty and stereoscopic after intraocular lens implantation of 33 cases with traumatic cataract.
方法对33例外伤性白内障人工晶状体植入术后矫正视力、双眼屈光状态、同时视、融合力、立体视锐度等功能进行检测。
The protruding display surface and the linear aberration of the lens induce the geometrical distortions that must be corrected before imaging.
由于光学镜头会产生几何畸变，加之显示器表面有一定弧度，因此成象在相纸上的图象存在着非线性的畸变。
Objective to evaluate the visual quality in keratoconus eyes corrected by rigid gas-permeable contact lens (RGPCL) and spectacles.
目的评价透气性硬性接触镜(RGPCL)和框架眼镜矫正圆锥角膜的视觉质量差异。
Objective to evaluate the visual quality in keratoconus eyes corrected by rigid gas-permeable contact lens (RGPCL) and spectacles.
目的评价透气性硬性接触镜(RGPCL)和框架眼镜矫正圆锥角膜的视觉质量差异。
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