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Heterophoria is an eye condition in which the directions that the eyes are pointing at rest position, when not performing binocular fusion, are not the same as each other, or, "not straight". This condition can be esophoria, where the eyes tend to cross inward in the absence of fusion; exophoria, in which they diverge; or hyperphoria, in which ...
Frequency. ~2% (children) [ 3] 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 ...
Micropsia is a condition affecting human visual perception in which objects are perceived to be smaller than they actually are. Micropsia can be caused by optical factors (such as wearing glasses), by distortion of images in the eye (such as optically, via swelling of the cornea or from changes in the shape of the retina such as from retinal edema, macular degeneration, or central serous ...
Lentigo in cats is a common dermatological condition characterized by the presence of small, flat, brownish spots on the skin — particularly around the lips, nose, and eyelid margins. Unlike in ...
The first theory suggests feline hyperesthesia syndrome is a behavioural disorder, which is caused by either behavioural displacement or stress factors. Stress increases the release of [alpha]-melanocyte-stimulating hormone and causes increased grooming and endorphin production. [ 2][ 4][ 5][ 6] Behavioural displacement would occur when a cat ...
Feline corneal sequestrum (also known as feline corneal necrosis) [1] is the development of dark areas of dead tissue in the cornea of domestic cats. [2] [3] [4] This disease is painful to the cat, although it develops slowly over a longer period of time. Cats will usually demonstrate teary eye (s), squinting or closing of the eye (s), and ...
Cats' eyes are largely similar to ours but with some fascinating differences, and one thing they have that we don't is a third, inner eyelid, called the nictitating membrane. When a cat blinks it ...
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.