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The white-spotted cat hisses at the dog, the solid-white deaf cat dozes unaware of the barking. Congenital sensorineural deafness occurs commonly in domestic cats with a white coat. It is a congenital deafness caused by a degeneration of the inner ear. [1] Deafness is far more common in white cats than in those with other coat colours.
Cat senses. The large ears, eyes, and many vibrissae (whiskers) of the cat adapt it for low-light predation. Cat senses are adaptations that allow cats to be highly efficient predators. Cats are good at detecting movement in low light, have an acute sense of hearing and smell, and their sense of touch is enhanced by long whiskers that protrude ...
In a study of 18 cats, the cat behavior of several half-blinks followed by a prolonged eye narrowing or eye closure was found to be a positive emotional response. When a familiar human slow-blinks towards a cat, the cat tends to approach the human more frequently than if the human has a neutral expression that avoids eye contact.
The slow blink is a potent form of cat communication, and if you're in the receiving end of one it's only polite to return the compliment. You don't have to wait to receive a slow blink, though ...
Strabismus is a vision disorder in which the eyes do not properly align with each other when looking at an object. [2] The eye that is pointed at an object can alternate. [3] The condition may be present occasionally or constantly. [3] If present during a large part of childhood, it may result in amblyopia, or lazy eyes, and loss of depth ...
Hering's law of equal innervation is best understood with Johannes Peter Müller 's stimulus where an observer refoveates a point that moved in one eye only. The least-effort way to refoveate is to move the misaligned eye only. Instead Hering's law predicts that because both eyes must move by equal amounts, a combination of conjunctive and ...
Myopia, with or without astigmatism, is the most common eye condition in horses. [1] Several types of occlusion myopia have been recorded in tree shrews, macaques, cats and rats, deciphered from several animal-inducing myopia models. Preliminary laboratory investigations using retinoscopy of 240 dogs [6] found myopic problems with varying ...
Cataracts can be developed through old age, diseases or trauma to the eye. [5] Some animals that are prone to the development of cataracts are dogs, elephants, horses, pandas and seals. Cataracts are less common in cats [6] in comparison to dogs, where it is fairly common. Just like with humans, cataract extraction surgery can be performed on ...