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  2. Farsightedness - Wikipedia

    en.wikipedia.org/wiki/Farsightedness

    If the brain never learns to see objects in detail, then there is a high chance of one eye becoming dominant. The result is that the brain will block the impulses of the non-dominant eye. In contrast, the child with myopia can see objects close to the eye in detail and does learn at an early age to see objects in detail. [medical citation needed]

  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. Exotropia - Wikipedia

    en.wikipedia.org/wiki/Exotropia

    A comprehensive eye examination including an ocular motility (i.e., eye movement) evaluation and an evaluation of the internal ocular structures allows an eye doctor to accurately diagnose exotropia. Although glasses and/or patching therapy, exercises, or prisms may reduce or help control the outward-turning eye in some children, surgery is ...

  5. Myopia - Wikipedia

    en.wikipedia.org/wiki/Myopia

    In one recent study, less than one in 10 (8%) Australian children between the ages of four and 12 were found to have myopia greater than −0.50 diopters. [151] A recent review found 16% of Australians aged 40 or older have at least −1.00 diopters of myopia and 3% have at least −5.00 diopters. [147]

  6. Presbyopia - Wikipedia

    en.wikipedia.org/wiki/Presbyopia

    Also known as age-related farsightedness [5] (or as age-related long sight in the UK [6]), it affects many adults over the age of 40. A common sign of presbyopia is difficulty in reading small print, which results in having to hold reading material farther away. Other symptoms associated can be headaches and eyestrain. [4]

  7. Polycoria - Wikipedia

    en.wikipedia.org/wiki/Polycoria

    The signs and symptoms shown in a patient diagnosed with polycoria are associated with ocular and adnexal growth abnormalities. [10] The iris and the pupil become less effective. Signs can be present as a child; however, the patient may be diagnosed later in their life. This condition results in abnormal eye development affecting both eyes or ...

  8. Childhood blindness - Wikipedia

    en.wikipedia.org/wiki/Childhood_blindness

    Blindness in children can be defined as a visual acuity of <3/60 in the eye with better vision of a child under 16 years of age. [4] This generally means that the child cannot see an object 10 feet (about 3 meters) away, that another child could see if it was 200 feet (about 60 meters) away.

  9. 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.