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2. 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]

3. Convergence insufficiency - Wikipedia

   en.wikipedia.org/wiki/Convergence_insufficiency

   Convergence insufficiency. Convergence Insufficiency. Other names. Convergence disorder. Specialty. Ophthalmology, optometry. Convergence insufficiency is a sensory and neuromuscular anomaly of the binocular vision system, characterized by a reduced ability of the eyes to turn towards each other, or sustain convergence .

4. Leber's hereditary optic neuropathy - Wikipedia

   en.wikipedia.org/wiki/Leber's_hereditary_optic...

   1:30,000 to 1:50,000. Leber's hereditary optic neuropathy ( LHON) is a mitochondrially inherited (transmitted from mother to offspring) degeneration of retinal ganglion cells (RGCs) and their axons that leads to an acute or subacute loss of central vision; it predominantly affects young adult males. LHON is transmitted only through the mother ...

5. 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]

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.

8. Pediatric ophthalmology - Wikipedia

   en.wikipedia.org/wiki/Pediatric_ophthalmology

   Genetic disorders often cause eye problems for affected children. Since approximately 30% of genetic syndromes affect the eyes, examination by a pediatric ophthalmologist can help with the diagnosis of genetic conditions. Many pediatric ophthalmologists participate with multi-disciplinary medical teams that treat children with genetic syndromes.

9. 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 ...