For extra bases (no, not really) adjust the "Angle of Descent" to see how a little curve becomes a big one in your peripheral vision.
对于额外基地(没有，不真正地)调整“下降角”看小的曲线怎么成为一个在您的周边视觉。
Or if you need vision correction, you might get an extra pair of prescription eyeglasses.
如果你需要校正视力，你可能需要一副有度数的眼睛。
But was an extra photopigment all that was needed to evolve trichromatic vision? Or does seeing the world in all its colourful splendour require extra brain power too?
但是是否另一种感光色素必须完全进化成三色视觉？或者要看到世界所有颜色需要特别的脑部功能？
Sign: Your eyes appear as circular mirrors. In your peripheral vision, all other living creatures appear twisted, covered in tentacles, extra eyes, and vestigial organs.
表征：你的眼睛看起来像是圆形的镜子，在你眼中看来，所有的活物都好像扭曲了一般，他们身上都带有触手、额外的眼睛、外露的器官或肿块。
ResultsAfter extra PRP, vision was improved in 12 eyes (18.4%), unchanged in 36 eyes (55.4%) and decreased in 17 eyes (26.2%).
结果超全视网膜光凝术后视力提高12眼(18.4%)，视力不变36眼(55.4%)，视力下降17眼(26.2%)。
ResultsAfter extra PRP, vision was improved in 12 eyes (18.4%), unchanged in 36 eyes (55.4%) and decreased in 17 eyes (26.2%).
结果超全视网膜光凝术后视力提高12眼(18.4%)，视力不变36眼(55.4%)，视力下降17眼(26.2%)。
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