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  2. Congenital blindness - Wikipedia

    en.wikipedia.org/wiki/Congenital_blindness

    Congenital blindness is a hereditary disease and can be treated by gene therapy. Visual loss in children or infants can occur either at the prenatal stage (during the time of conception or intrauterine period) or postnatal stage (immediately after birth). [3] There are multiple possible causes of congenital blindness.

  3. Childhood blindness - Wikipedia

    en.wikipedia.org/wiki/Childhood_blindness

    Childhood blindness is an important contribution to the national prevalence of the disability of blindness. [ 3] 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 ...

  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. Myopia - Wikipedia

    en.wikipedia.org/wiki/Myopia

    Diagram showing changes in the eye with myopia: Specialty: Ophthalmology, optometry: Symptoms: Distant objects appear blurry, close objects appear normal, headaches, eye strain [1] Complications: Retinal detachment, cataracts, glaucoma [2] Causes: Combination of genetic and environmental factors [2] Risk factors

  6. Refractive error - Wikipedia

    en.wikipedia.org/wiki/Refractive_error

    When refractive errors in children are not treated, the child may be at risk of developing ambylopia, where vision may remain permanently blurry. [19] 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 ...

  7. Farsightedness - Wikipedia

    en.wikipedia.org/wiki/Farsightedness

    Treatment. Eyeglasses, contact lenses, refractive surgeries, IOL implantation [ 2] Frequency. ~7.5% (US) [ 5] Far-sightedness, also known as long-sightedness, hypermetropia, and hyperopia, is a condition of the eye where distant objects are seen clearly but near objects appear blurred.

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