Bringing Dog Vision in Focus

Veterinary ophthalmologists are often asked, "How well do animals see?" Visual function involves a combination of many factors, including: the field of view, depth perception, acuity, perception of motion, and color differentiation. All of these functions must then be integrated by the brain to produce useful vision. Although we are unable to ask our pets to read an eye chart, through comparative studies, it is possible to make some educated assumptions about their vision.

Most humans have the ability to see all the different colors of the electromagnetic spectrum, and consequently perceive all its' colors. Man's best friend is colorblind, but, fortunately, his survival does not depend upon the ability to see colors. His keen sense of smell compensates for his inability to see colors, and enables him to differentiate between things.

Extensive scientific testing on dogs supports the conclusion that they live in a colorless world. The testing done primarily focused on the dogs' responses to colors for food. Dogs could not tell the difference between one color, a signal for food, and other colors, that were not for food. Similar tests conducted on cats produced similar results, which led scientists to conclude that they, too, are colorblind and live in a gray world.

The inability of most animals to see colors, from an evolutionary standpoint, is quite simple to understand. Many colorblind animals have dull-colored coats, hunt for food in the dark of night, or graze in the dim twilight hours. Their other senses have developed to the point where the lack of color vision in no way impairs them. For them, life in a colorless world is neither a handicap, nor a threat to their survival.

The only animals, other than man, scientists can conclusively say have color vision are monkeys and apes. Both can be trained to open a colored door, behind which is food, and man can be trained to open a refrigerator door of any color!

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Monday:

7:30 am-6:00 pm

Tuesday:

7:30 am-6:00 pm

Wednesday:

7:30 am-6:00 pm

Thursday:

7:30 am-6:00 pm

Friday:

7:30 am-6:00 pm

Saturday:

8:00am - 12:00pm

Sunday:

Closed

Testimonials

Read What Our Clients Say

  • "Took two of my kitties in on Wednesday. They were seen promptly and taken care of by some of the kindest people. Left with medicine and the lady at the front desk made sure my payment method was correct after some issues with the card company. Thank you all for your patients and time. My fuzzy buddies love them, and so do I."
    Clare D.
  • "The best vet around. We just recently moved out of the area but we are still bringing our animals to visit Dr Johnston and his amazing staff. The ladies in the front office to the staff in the back are the best. They all make you and your pets feel like family. They take time to listen to your concerns and try to come up with the best possible plan for you and your pet. We have been going there for about 10 years and even though our drive is a little longer we will continue to take our pets there."
    Tawnya H.