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Menace response. The menace response is one of three forms of blink reflex. It includes the reflexive blinking that occurs specifically in response to the rapid approach of an object. [1] The menace response comprises blinking of the eyelids, in order to protect the eyes from potential damage, but may also include turning of the head, neck, or ...
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 ]
Glare (vision) Glare from a camera flash during a Sumo fight. Glare is difficulty of seeing in the presence of bright light such as direct or reflected sunlight or artificial light such as car headlamps at night. Because of this, some cars include mirrors with automatic anti-glare functions and in buildings, blinds or louvers are often used to ...
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 ...
Dazzle reflex is a type of reflex blink where the eyelids involuntarily blink in response to a sudden bright light . Neurological pathways for the dazzle reflex involve subcortical pathways, such as the supraoptic nucleus and superior colliculus .
Motion camouflage is camouflage which provides a degree of concealment for a moving object, given that motion makes objects easy to detect however well their coloration matches their background or breaks up their outlines. The principal form of motion camouflage, and the type generally meant by the term, involves an attacker's mimicking the ...
Camouflage is the use of any combination of materials, coloration, or illumination for concealment, either by making animals or objects hard to see, or by disguising them as something else. Examples include the leopard 's spotted coat, the battledress of a modern soldier, and the leaf-mimic katydid 's wings.
The results of each activity are scored to give a total score out of 100 (18 points for attention, 26 for memory, 14 for fluency, 26 for language, 16 for visuospatial processing). The score needs to be interpreted in the context of the patient's overall history and examination, but a score of 88 and above is considered normal; below 83 is ...