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Updated: May 28, 2025

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在正常角膜中确定区域上皮厚度,角膜度和角膜功率之间的关系

Barbara A L Dutra, Bassel Hammoud, Justin S Schumacher

    Journal of refractive surgery (Thorofare, N.J. : 1995)
    |February 12, 2025
    PubMed
    概括

    在正常的眼睛中,角膜上皮的厚度与角膜度无关. 表皮对角膜的整体功率的影响很小,这表明它不会掩盖潜在的层状.

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    Focusing of Light in the Eye01:16

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    Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
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