I don't think dogs rely a lot on their eyesight. their senses of smell and hearing are so keen and I think those are used more than their eyesight. At least that is what I have heard.... Here is some info on dogs' senses:
<span style="color:red">The handler must have an understanding of the dog's senses if he expects to train the dog successfully.
It is difficult, at times, to draw a line in the twilight zone between acts which arise out of pure intelligence on the part of the dog and acts which arise out of its ability to learn by repetition.
The five common senses of the dog, which can be placed in order of importance as means of communication, are:
Smell is the dog's most developed sense, far superior to that of the human. It is not based on the discrimination of flavours or odours, but on the general classification of smells, useful and useless, friendly and dangerous.
A dog is born deaf and cannot hear until approximately it's 21 days' old. The young dog has problems telling what direction sounds come from until it is fairly mature. Dogs are sensitive to extremely loud noises and also to high pitched sound. Some researchers indicate a dog's hearing is somewhat more acute than that of a human while others indicate it is about the same. However, the dog has a higher range of pitch. That is to say, dogs can hear sounds that a human cannot.
For a long time, it was maintained that dogs were mostly colour blind, an opinion which was soundly condemned. It is likely that the external world appears to them as varying highlights of black and gray. Experimental evidence supports the opinion that to dogs the world looks like a black and white photograph. Perception of movement is the type of visual stimulation to which dogs seem very sensitive. If an object is moved, ever so slightly, most dogs will detect it and respond to the movement. Dogs make little use of their eyes in learning except for their perception of movements. They cannot see as far distant as humans.
Touch has little development in the dog because it is little needed. The hairy covering of the dogs entire body, except nose, makes its use almost impossible.
One must be careful not to overfeed a dog or feed it incorrectly.
In taste, the dog has not developed variety. The dog can be taught to like almost any taste whether it is evil or agreeable.
Do Dogs Reason?
The mind of the dog responds to memory, whether the memory is that of fear or pleasure. To memory or association is added the ability to imitate. These, together, form the main background of the dog's mental processes. They may be acquired through the instinct handed down generation after generation or through the training of the dog by its handler.
That is an interesting information page K/C thanks for posting it. I often wonder though that if a dog is kept inside most of the time and under artificial light would that impare it's sight in some way? Just a thought I had.
I woud have not thought of this either, until we had to go to an eye specialist for my daughters dog...she had eyelashes growing the wrong way. The vet said her eyesight was poor on top of the eyelash problem. I asked how they could tell and he said that the muscle in her eye was a give away for him.
So yes, dogs do have eye problems. As others said though they do compensate for the poor eyesight by the other instincts they have. Shakira (daughters dog) is always smelling...with her nose in the air....kinda looks like a person who always has a finger up checking the air.
The information you guys gave is interesting and helpful. Besides surgery, are there options, like glasses or something? That would suck if there was a young dog with bad vision, but you couldn't afford surgery. I understand relying on the other senses, but then again, I would still like my dog to see better. Interesting that they can't see as far as humans either.
Thanks you guys for your time and explainations!
Originally posted by puppylucy@Aug 11 2005, 04:23 PM but wowww chanel looks really cute in your signature