Best Answer: The pupil size limits the the amount of light that enters the eye. There are also day-time photoreceptors, the cones, which occur with three kinds of photo-sensitive pigments, for red, yellow-green, and blue.
Those âdevotedâ dogs lying on their mastersâ graves? Theyâre depressed. âMany dogs are simply depressed for their whole lives because theyâre deprived of the normal amount of attention, exercise, and stimulation they need from day one. These humans wonât know they have a problem and wonât want the dog any livelier as that wouldnât fit in with their lifestyle,â says Tamara.
Poor Eyesight: Due to the poor development of dogs with Down syndrome, they also tend to have poor eyesight. In fact, they are also at risk of developing cataract in at least one of their eyes. Check the eyes of your dog for cloudiness. If you notice cloudiness, it may indicate the formation of cataract.