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Nystagmus. Nystagmus is a condition of involuntary (or voluntary, in some cases) [1] eye movement. [2] People can be born with it but more commonly acquire it in infancy or later in life. In many cases it may result in reduced or limited vision. [3] In normal eyesight, while the head rotates about an axis, distant visual images are sustained by ...
Flat-chested kitten syndrome ( FCKS) is a disorder in cats wherein kittens develop a compression of the thorax (chest/ribcage) caused by lung collapse. [citation needed] This is a soft-tissue problem and is not caused by vertebral or bony malformation. However, lung collapse can be a secondary symptom caused by bony deformity affecting the ...
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 ...
Progressive retinal atrophy (PRA) is a group of genetic diseases seen in certain breeds of dogs and, more rarely, cats. Similar to retinitis pigmentosa in humans, [ 1] it is characterized by the bilateral degeneration of the retina, causing progressive vision loss culminating in blindness. The condition in nearly all breeds is inherited as an ...
Dissociated vertical deviation. Dissociated vertical deviation ( DVD) is an eye condition which occurs in association with a squint, typically infantile esotropia. The exact cause is unknown, although it is logical to assume it is from faulty innervation of eye muscles.
Parinaud's oculoglandular syndrome. Parinaud's oculoglandular syndrome (POS) is a medical condition characterized by a specific set of symptoms affecting the eye and nearby lymph nodes. Named after the French ophthalmologist Henri Parinaud, it should not be confused with the neurological syndrome caused by a lesion in the midbrain which is also ...
Many cats become paralyzed because of traumatic injuries, such as a hard fall or being hit by a car. Cats can also experience a type of blood clot called “Saddle thrombus,” which blocks blood ...
Bruns nystagmus is an unusual type of bilateral nystagmus most commonly occurring in patients with cerebellopontine angle tumours.It is caused by the combination of slow, large amplitude nystagmus (gaze paretic nystagmus) when looking towards the side of the lesion, and rapid, small amplitude nystagmus (vestibular nystagmus) when looking away from the side of the lesion. [1]