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The Four Prism Dioptre Reflex Test (also known as the 4 PRT, or 4 Prism Dioptre Base-out Test) is an objective, non-dissociative test used to prove the alignment of both eyes (i.e. the presence of binocular single vision) by assessing motor fusion. [1] Through the use of a 4 dioptre base out prism, diplopia is induced which is the driving force ...
Esotropia (from Greek eso 'inward' and trope 'a turning' [1]) is a form of strabismus in which one or both eyes turn inward. The condition can be constantly present, or occur intermittently, and can give the affected individual a "cross-eyed" appearance. [2] It is the opposite of exotropia and usually involves more severe axis deviation than ...
Maropitant (INN; [2] brand name: Cerenia, used as maropitant citrate (USAN), is a neurokinin-1 (NK 1) receptor antagonist developed by Zoetis specifically for the treatment of motion sickness and vomiting in dogs. It was approved by the FDA in 2007, for use in dogs [3][4] and in 2012, for cats. [5]
Idiopathic head tremors are characterized by three movements: rotational, up and down, and side to side. They occur spontaneously and typically last for 1-3 minutes. [3] There is often not a postictal stage that generally follows a seizure, because idiopathic head tremors are not considered seizure activity. Dogs are generally alert and ...
Animal-assisted therapy is an alternative or complementary type of therapy that includes the use of animals in a treatment. [4] [5] It falls under the realm of animal-assisted intervention, which encompasses any intervention in the studio that includes an animal in a therapeutic context such as emotional support animals, service animals trained to assist with daily activities, and animal ...
Fixation disparity is a tendency of the eyes to drift in the direction of the heterophoria.While the heterophoria refers to a fusion-free vergence state, the fixation disparity refers to a small misalignment of the visual axes when both eyes are open in an observer with normal fusion and binocular vision. [1]
Since dogs can’t speak like humans, they’re all about the body language. If you want to understand your dog’s needs and emotions better, be observant when it comes to this form of communication.
Yoked prism can move the image away from primary gaze without the need for a constant head tilt or turn. [1] Prism correction is measured in prism dioptres. A prescription that specifies prism correction will also specify the "base". The base is the thickest part of the lens and is opposite from the apex.