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  2. Health effects of 3D - Wikipedia

    en.wikipedia.org/wiki/Health_effects_of_3D

    These problems may also reflect upon a fundamental vision-related problem not entirely linked to binocular vision issues. Symptoms sign that an eye condition is present, which may be: Refractive problems. Myopia (nearsightedness), hyperopia (farsightedness) or astigmatism. Strabismus. Strabismus is the lack of binocular vision. Eyes aren't ...

  3. 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.

  4. Visual impairment - Wikipedia

    en.wikipedia.org/wiki/Visual_impairment

    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. Convergence insufficiency - Wikipedia

    en.wikipedia.org/wiki/Convergence_insufficiency

    The symptoms and signs associated with convergence insufficiency are related to prolonged, visually demanding, near-centered tasks. They may include, but are not limited to, diplopia (double vision), asthenopia (eye strain), transient blurred vision, difficulty sustaining near-visual function, abnormal fatigue, headache, and abnormal postural adaptation, among others.

  6. Irlen syndrome - Wikipedia

    en.wikipedia.org/wiki/Irlen_Syndrome

    Irlen syndrome (or scotopic sensitivity syndrome) is a hypothetical medical condition of disordered visual processing which, it is proposed, can be treated by wearing colored lenses. The ideas of Irlen syndrome are pseudoscientific and not supported by scientific evidence, [ 1][ 2][ 3] and its treatment has been described as a health fraud ...

  7. Myopia - Wikipedia

    en.wikipedia.org/wiki/Myopia

    Myopia. Myopia, also known as near-sightedness and short-sightedness, [ 5] is an eye disease [ 6][ 7][ 8] where light from distant objects focuses in front of, instead of on, the retina. [ 1][ 2][ 7] As a result, distant objects appear blurry while close objects appear normal. [ 1]

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