丁小wei asked in 科學生物學 · 1 decade ago

視覺上之盲點??

我想知道,

視覺上的盲點對於我們的生活是否會造成影響呢??

是的話:有何影響??

否的話:為什麼??

1 Answer

Rating
  • Tiger
    Lv 5
    1 decade ago
    Favorite Answer

    視網膜的中心是視神經,這個點也被稱為盲點,因為這裡沒有感光細胞。這個點看上去是 一個白色。視網膜上各個節細胞的軸突,會匯集成視神經(optic nerves),由視神經盤(optic disk)離開眼睛。由於此處沒有任何視覺接受器,故稱為盲點(blind spot)。We don't notice this blind spot in everyday life (視覺上的盲點對於我們的生活不會造成影響) and the reasons are:First, the brain synthesizes input from the two eyes; Second, the brain creates images based on the surrounding patterns of input.Calculate the Diameter of Your Blind Spot

    圖片參考:http://www.yorku.ca/eye/blindspo.gif

    Close your right eye and look directly at the number 3. Can you see the yellow spot in your peripheral vision? Now slowly move towards or away from the screen. At some point, the yellow spot will disappear. Note how far you are from the screen when the yellow spot vanishes. Repeat the experiment looking at a larger and then again at a smaller number. Did you notice the difference in distance from the video screen when the spot disappeared?

    Source(s): from Tiger & google.com
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