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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 ...
Appearance. Separation anxiety in dogs describes a condition in which a dog exhibits distress and behavior problems when separated from its handler. Separation anxiety typically manifests within minutes of departure of the handler. [ 1 ] It is not fully understood why some dogs suffer from separation anxiety and others do not. [ 2 ]
Flash blindness is an either temporary or permanent visual impairment during and following exposure of a varying length of time to a light flash of extremely high intensity, such as a nuclear explosion, flash photograph, lightning strike, or extremely bright light, i.e. a searchlight, laser pointer, landing lights or ultraviolet light. [ 1 ]
Blindness in animals can be caused be the result of environmental adaptations over time, or due to various conditions of the eyes. [1] Many blind species have been able to adapt, [2] navigate and survive in their environment by relying on their other senses. Some species are born without eyes such as the kauaŹ»i cave wolf spider, olm and the ...
Animals can have a powerful effect on the human experience. Coming home to a loyal friend can boost a person’s mental and physical health. The same can be true for a pet with a disability who ...
Canine glaucoma refers to a group of diseases in dogs that affect the optic nerve and involve a loss of retinal ganglion cells in a characteristic pattern. An intraocular pressure greater than 22 mmHg (2.9 kPa) is a significant risk factor for the development of glaucoma. Untreated glaucoma in dogs leads to permanent damage of the optic nerve ...
A study titled "The odor of an unfamiliar stressed or relaxed person affects dogs' responses to a cognitive bias test" was published in Scientific Reports on July 22, 2024, and the results are ...
Visual or vision impairment (VI or VIP) is the partial or total inability of visual perception. In the absence of treatment such as corrective eyewear, assistive devices, and medical treatment, visual impairment may cause the individual difficulties with normal daily tasks, including reading and walking. [ 6 ]