2007-03-23 22:57:54 · 11 answers · asked by Julie A 1 in Pets ➔ Dogs
woof!
2007-03-23 23:01:27 · answer #1 · answered by achronicfan 3 · 1⤊ 1⤋
Dogs were thought to be dichromats and thus, by human standards, color blind.
Studies in veterinary opthamology suggest that dogs CAN see in colors (black/white site is outdated information).
Behavioral tests in dogs suggest that they can distinguish red and blue colors but often confuse green and red.
The perception of color is determined by the presence of cone photoreceptors within the retina. These cone cells function in bright light conditions and comprise approximately 20% of the photoreceptors in the central retina of the dog. In humans, the central retina (macula) is 100% cones.
Different breeds of dogs have different eye shapes and dimensions, and they also have different retina configurations.
Dogs with long noses have a "visual streak" which runs across the width of the retina and gives them a very wide field of excellent vision, while those with short noses have an "area centralis" -- a central patch with up to three times the density of nerve endings as the visual streak --giving them detailed sight much more like a human's.
Because the lenses of dogs' eyes are flatter than humans', they cannot see as much detail; on the other hand, their eyes are more sensitive to light and motion than humans' eyes.
Some breeds, particularly the best sighthounds, have a field of vision up to 270° (compared to 180° for humans), although broad-headed breeds with their eyes set forward have a much narrower field of vision, as low as 180°.
Diagrams of what possible dog vision is like can be seen here: http://www.veterinaryvision.com/See.htm
Cited from Wikipedia and veterinaryvision.com
2007-03-24 06:17:05 · answer #2 · answered by mroof! 6 · 0⤊ 1⤋
No, They Only See Everything In Black And White. They're Color Blind, They Have A Good Sense Of Direction Though.
2007-03-24 06:23:35 · answer #3 · answered by s_jeongco 2 · 0⤊ 1⤋
THey have limited colour vision
Read this article
http://www.puplife.com/dogcaretips/howdogsseecolors.html
2007-03-24 06:07:18 · answer #4 · answered by OntarioGreys 5 · 1⤊ 0⤋
yes and no, i once asked my vet this and she said that most of what a dog sees is black and white or gray, once in ahile they can see bright colors though, like yellow
2007-03-24 06:01:11 · answer #5 · answered by moneyhungry 2 · 2⤊ 0⤋
No dogs cannot see in color.
2007-03-28 00:29:56 · answer #6 · answered by ishauna a 2 · 0⤊ 0⤋
I think they can, but doctors seem to think not. I wonder which dog told them they couldn't see colors? Lassie, Rin Tin Tin, just which one?
2007-03-24 06:08:34 · answer #7 · answered by Duchess20 4 · 0⤊ 1⤋
No,dogs see black and white.
2007-03-24 06:01:26 · answer #8 · answered by theterrorofdeath 3 · 1⤊ 1⤋
Black and White only
2007-03-24 06:01:14 · answer #9 · answered by Boostergold 4 · 1⤊ 1⤋
No they can't. They can only see black and white
2007-03-24 06:05:03 · answer #10 · answered by Anonymous · 1⤊ 1⤋