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Why do the eye of cat glow at night when seen by means of flashlight or a cars headlights?
Wiki User
∙ 8y ago
Cat eyes glow in the dark when light shows in their eyes because their eyes reflect like a mirror, causing their eyes to glow in the dark when light shows into their eyes.
Cats, dogs, and many nocturnal creatures appear to have glowing eyes because the back of their eyeballs include a special reflective layer called the tapetum lucidum. This helps animals (cats in this case) see better in low light by working like a mirror on the retina to reflect the light back through the eyes, giving them a second chance to absorb the light. The colors seem more visible at night because the pupils are dilated wider than during the day, allowing more of the tapetum lucidum to be visible.
Humans don't have this layer. That partially explains why when you get your developed photographs back the subjects have red spots in their eyes. This is caused by the light from the flash traveling through the pupil and illuminating the blood-cell rich retina at the back of our eyes.
Cats eyes glow at night when a light is shown on them because of a reflective layer on the back of the eyeball called the tapetum lucidum. This helps the cat see better in low-light by acting like a mirror on the retina to reflect the light back through the eyes. The pupils are dilated more at night than during the day.
Wiki User
∙ 8y ago
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Why do the eyes of the cat glow at night when seen by means of flashlight or cars headlight?
Reflection.
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