Correcting Vision Problems in Children
Strabismus
The child suspiciously squints as the visual axes of his eyes are not parallel. To avoid seeing double he uses his dominant eye to neutralize the image. The eye loses unsolicited vision details. If left untreated, strabismus can cause amblyopia which can have a serious impact on child development. Strabismus can be either due to defective vision (myopia, hyperopia, astigmatism) different in either eyes or an abnormality of one of the muscles providing eye movement. Depending on the case, this anomaly is corrected by patches sometimes placed on the dominant eye, sometimes on the strabismic eye, or using orthoptic exercises to improve binocular vision, or by surgery.
Amblyopia
The child does not see well from one eye which becomes amblyopic. This happens because the eye did not receive adequate use during early childhood. Amblyopia, better referred as "lazy eye" often is the result of a difference in focusing of the two eyes or a misalignment of the child's eyes such as crossed eyes. In many cases one eye becomes stronger and suppressed the image of the other resulting in the weaker becoming useless.
Corrective lenses: Focus on quality.
To correct vision, the lenses must be manufactured to order. Thanks to recent technological innovations, they are becoming thinner, lighter and more transparent. The best performing lenses are made of polycarbonate (an ultra-resistant material) and are available from all opticians and manufacturers. For cleaning, it is preferable to use the microfiber cloth and tissues are to be banned because they are too abrasive.
Long-sightedness
The child has difficulty in seeing well in the near distance. Heavy Hyperopia is often a accompanied by squint in small children. The lens is said to converge rather than convex.
Myopia
The child is when a child has difficulty from seeing from afar. Myopia is often hereditary, it can be scalable and often increases with time. It is corrected by a divergent or concave lens, thicker at the edge than in the centre.
Astigmatism
The child does not see well neither far nor near, in which case his vision will be distorted. He does not see a clear and uniform contrast between the horizontal, vertical or oblique lines. Some directions are perceived as being more vague than others. Astigmatism is always combined with a visual defect (myopia or hyperopia.) It is corrected by using a toric lens to compensate to the offset curves of the cornea (which is oval rather than round). The thickness of the lens varies according to the astigmatism, ie the sense in which the eye distorts the images.
Sources:
http://www.children-special-needs.org/
Published by Kir Tab
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