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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 ...
Prism dioptres. Prism correction is commonly specified in prism dioptres, a unit of angular measurement that is loosely related to the dioptre. Prism dioptres are represented by the Greek symbol delta (Δ) in superscript. A prism of power 1 Δ would produce 1 unit of displacement for an object held 100 units from the prism. [2]
The English bulldog, a typically brachycephalic dog breed, may have brachycephalic syndrome. A Peke-face Exotic shorthair.. Brachycephalic obstructive airway syndrome (BOAS), also known as brachycephalic airway obstructive syndrome (BAOS), brachycephalic airway syndrome (BAS), and brachycephalic syndrome (BS), is a pathological condition affecting short nosed dogs and cats which can lead to ...
Rage syndrome is a rare seizure disorder in dogs, characterized by explosive aggression. [1] [2] [3] It is frequently confused with idiopathic aggression, a term for aggression with no identifiable cause. Rage syndrome is most often a misdiagnosis of dogs with an unrelated, but more common, form of aggression.
Havanese. These funny and outgoing little pups are the national dog of Cuba (hence the name) and make loyal family companions. While they're quite intelligent and naturally affectionate, Havanese ...
This enabled color pictures with the use of merely monochrome film stock. Angle of view of a lenticular print. The angle of view of a lenticular print is the range of angles within which the observer can see the entire image. This is determined by the maximum angle at which a ray can leave the image through the correct lenticule.
Spherical aberration is the cause of night myopia and is commonly increased after myopic LASIK and surface ablation. It results in halos around point images. Spherical aberration exacerbates myopia in low light (night myopia). In brighter conditions, the pupil constricts, blocking the more peripheral rays and minimizing the effect of spherical ...
Colour. black, white, tan. Dog ( domestic dog) The New Zealand Heading Dog is a working and herding dog that uses its visual prowess, intelligence and quick movement to control sheep. Bred from Border Collies, Heading Dogs are a sturdy, long-legged and even-haired breed. They are generally black and white in colour, but may also be tan.