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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]
When refractive errors in children are not treated, the child may be at risk of developing ambylopia, where vision may remain permanently blurry. [33] Because young children typically do not complain of blurry vision, the American Academy of Pediatrics recommends that children have yearly vision screening starting at three years old so that unknown refractive errors or other ophthalmic ...
Careful clinical assessment could aid in accurate diagnosis of the cause of the visual field defect and loss of vision. Compressive lesions of the visual pathway, especially lesions affecting optic nerve require a multi-disciplinary approach involving neurosurgeon , physician as well as the ophthalmologist . [ 32 ]
Social vision was developed as a research field in the early 2000s. The Science of Social Vision, an amalgamation of social vision research, was released in 2010, [2] followed by a special edition issue of Social Cognition in 2013 that focused on social vision. The field developed at the intersection of social psychology and vision science ...
A vision disorder is an impairment of the sense of vision. Vision disorder is not the same as an eye disease . Although many vision disorders do have their immediate cause in the eye, there are many other causes that may occur at other locations in the optic pathway.
The balance of corneal and internal aberrations is a typical example of creating two coupling optical systems. [ 5 ] The accommodative response of the eye results in changes to the lens shape and substantially affects the wavefront aberration pattern.
Micropsia is a condition affecting human visual perception in which objects are perceived to be smaller than they actually are. Micropsia can be caused by optical factors (such as wearing glasses), by distortion of images in the eye (such as optically, via swelling of the cornea or from changes in the shape of the retina such as from retinal edema, macular degeneration, or central serous ...
Those with a constrained vision prefer the systematic processes of the rule of law and experience of tradition. Compromise is essential because there are no ideal solutions, only trade-offs. Those with a constrained vision favor empirical evidence and time-tested structures and processes over intervention and personal experience. Ultimately ...