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  2. Visual impairment - Wikipedia

    en.wikipedia.org/wiki/Visual_impairment

    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]

  3. Myopia - Wikipedia

    en.wikipedia.org/wiki/Myopia

    The idea that myopia was caused by the eye strain involved in reading or doing other work close to the eyes was a consistent theme for several centuries. [101] In Taiwan, faced with a staggering rise in the number of young military recruits needing glasses, the schools were told to give students' eyes a 10-minute break after every half-hour of ...

  4. Eye strain - Wikipedia

    en.wikipedia.org/wiki/Eye_strain

    Eye strain, also known as asthenopia (from astheno- 'loss of strength' and -opia 'relating to the eyes'), is a common eye condition that manifests through non-specific symptoms such as fatigue, pain in or around the eyes, blurred vision, headache, and occasional double vision. [1]

  5. Amblyopia - Wikipedia

    en.wikipedia.org/wiki/Amblyopia

    Amblyopia, also called lazy eye, is a disorder of sight in which the brain fails to fully process input from one eye and over time favors the other eye. [1] It results in decreased vision in an eye that typically appears normal in other aspects. [ 1 ]

  6. Accommodative insufficiency - Wikipedia

    en.wikipedia.org/wiki/Accommodative_insufficiency

    Accommodative insufficiency (AI) involves the inability of the eye to focus properly on an object. Accommodation is the adjustment of the curvature of the lens to focus on objects near and far. In this condition, amplitude of accommodation of a person is lesser compared to physiological limits for his age. [1]

  7. Focal neurologic signs - Wikipedia

    en.wikipedia.org/wiki/Focal_neurologic_signs

    Occipital lobe signs usually involve visual sensation, and may include: [citation needed] total loss of vision (cortical blindness) loss of vision with denial of the loss (Anton's syndrome) loss of vision on one side of the visual field of both eyes (homonymous hemianopsia) visual agnosias, i.e. inability to recognize familiar objects, colors ...