1. Vision is much more acute at the fovea than at other portions of the retina. 
   在视网膜的中央小窝的视力比网膜其他部份更敏锐。
2. One of the photoreceptors in the retina of the eye that is responsible for daylight and color vision. These photoreceptors are most densely concentrated in the fovea centralis, creating the area of greatest visual acuity. 
   视锥细胞一种在视网膜上感受光线和色彩的感光细胞。这些感光细胞主要集中于视网膜的中央凹进处，使得这一部分对光线最敏感

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• 1. 黄斑中心凹
  中心凹central fovea~fovea centralis...黄斑中心凹central fovea of macula...中心凹陷形钻头concave inward bit
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