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  2. 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 ]

  3. Exotropia - Wikipedia

    en.wikipedia.org/wiki/Exotropia

    In young children with any form of strabismus, the brain may learn to ignore the misaligned eye's image and see only the image from the best-seeing eye. This is called amblyopia, or lazy eye, and results in a loss of binocular vision, impairing depth perception. In adults who develop strabismus, double vision sometimes occurs because the brain ...

  4. 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]

  5. Strabismus - Wikipedia

    en.wikipedia.org/wiki/Strabismus

    However, a constant unilateral strabismus causing constant suppression is a risk for amblyopia in children. Small-angle and intermittent strabismus are more likely to cause disruptive visual symptoms. In addition to headaches and eye strain, symptoms may include an inability to read comfortably, fatigue when reading, and unstable or "jittery ...

  6. Anisometropia - Wikipedia

    en.wikipedia.org/wiki/Anisometropia

    Anisometropia causes some people to have mild vision problems, or occasionally more serious symptoms like alternating vision or frequent squinting. However, since most people do not show any clear symptoms, the condition usually is found during a routine eye exam. [8] For early detection in preverbal children, photoscreening can be used.

  7. Sixth nerve palsy - Wikipedia

    en.wikipedia.org/wiki/Sixth_nerve_palsy

    The first aims of management should be to identify and treat the cause of the condition, where this is possible, and to relieve the patient's symptoms, where present. In children, who rarely appreciate diplopia, the aim will be to maintain binocular vision and, thus, promote proper visual development. [citation needed]

  8. Optic neuropathy - Wikipedia

    en.wikipedia.org/wiki/Optic_neuropathy

    Patients on amiodarone with new visual symptoms should be evaluated by an ophthalmologist. Tobacco exposure, most commonly through pipe and cigar smoking, can cause optic neuropathy. Middle-aged or elderly men are often affected and present with painless, slowly progressive, color distortion and visual loss in both eyes.

  9. Congenital blindness - Wikipedia

    en.wikipedia.org/wiki/Congenital_blindness

    Of all the children in the world, about 19 million of them are estimated to be visually impaired or blind. [28] There is evidence that the prevalence of visual impairment or blindness in children is much higher as many studies use data that are at risk bias and miss many children who fall under multiple categories of disadvantage (i.e. female ...