Do cats see better with the light on
or in the dark?
To see one needs light, any one even the cats. But
the felines have generally nocturnal habits, so the
commom belief that they see better at night. The
retina of the cat´s eye is made extra sensitive to
light by a layer of the purine base guanine, that
causes the eyes to shine at night when reached by a
strong light. The eyes are quite large and have pupils
that expand or contract (as slits) according to the
density of light and do not distinguish colours
Thanks for asking NEWTON!
(Dr. Mabel Rodrigues)
Better in the light... but they do see much better than we do in the dark.
Phillip Raclyn, DVM CVA
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Update: June 2012