Then read on to find out more about farsightedness and how to correct it. What Is Farsightedness? Farsightedness, or hyperopia, is a common refractive error. It happens when the eye is shorter than normal. The lens of the eye focuses an image on the back of the eye, called the ret...
当当中图深圳进口图书音像旗舰店在线销售正版《英文原版 远见:我们如何做出最重要的决定 Farsighted: How We Make the Decisions that Matter the Most 自我提升读物》。最新《英文原版 远见:我们如何做出最重要的决定 Farsighted: How We Make the Decisions that Matter t
longsighted 英[lɒŋˌsaɪtɪd]美[[lɒŋˌsaɪtɪd] adj.远视的,目光长远的 farsighted 英['fɑ:'saɪtɪd] 在后面加上 - ness 就变成名词形式。 farsightedness 英['fa:saɪtɪdnɪs]...
Surgeons then lift the flap to expose the inside of the cornea. Guided by the refractive error and the shape of the cornea, the excimer laser robotically sculpts the exposed corneal bed into the correct shape. This process...
Mixed astigmatism.One prinicipal meridian is nearsighted, and the other is farsighted. Astigmatism is also classified as regular or irregular. In regular astigmatism, the principal meridians are 90 degrees apart (perpendicular to each other). In irregular astigmatism, the principal meridians are not...
Krieglmeyer, R., De Houwer, J., & Deutsch, R. (2011). How farsighted are behavioral tendencies of approach and avoidance? The effect of stimulus valence on immediate vs ultimate distance change. Journal of Experimental Social Psychology, 47, 622-627....
当当网图书频道在线销售正版《【预订】Farsighted: How We Make the Decisions That Matter the Most》,作者:Johnson,出版社:Riverhead Books。最新《【预订】Farsighted: How We Make the Decisions That Matter the Most》简介、书评、试读、价格、图片等相关信息,尽
Bifocal lenses, which have a small plus segment, can help a farsighted person read or do close work, such as sewing. Astigmatism is caused by a distortion that results in a second focal point. It can be corrected with a cylinder curve. In addition, lenses can be made to correct for ...
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For the purpose of understanding how a concave lens can diverge light to correct nearsightedness, we can think of myopia as the eye having too much convergence of light. We know that myopia is usually due to an eyeball that is too long (axial myopia), but it is easier to think of it...