A Complete Collection of 100000 Whys
Fav十万个为什么
为什么揉眼睛会看到光斑？
简单的摘要：揉眼睛会看到光斑的原因主要是压力作用于眼球、视网膜受到刺激以及玻璃体混浊。
1、压力作用于眼球：揉眼睛时，通过眼皮对眼球施加压力，这种压力会暂时改变眼球的形状，影响其屈光系统，导致光线在眼球内的传播路径发生改变，从而产生光斑或闪光。
2、视网膜受到刺激：眼球的压力变化会刺激视网膜，特别是感光细胞，导致它们产生信号，这些信号被大脑解读为光斑或闪光。这种现象在黑暗中尤为明显，因为此时视网膜对光线更加敏感。
3、玻璃体混浊：揉眼睛可能导致眼球内部的玻璃体发生轻微的移位或震动，如果玻璃体存在混浊或悬浮物，这些物质在光线照射下会产生阴影或光斑，类似于“飞蚊症”的症状。
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