Contact Lens Could Prevent Vision from Worsening

Oct-04-12 A newly developed contact lens can do more than correct nearsightedness—it can also help prevent the condition from progressing in children.

Traditional contact lenses correct myopia by focusing light on the center of the retina, but this also causes a small amount of farsightedness on the edges of the retina. As a myopic child matures, their eye will adjust for the farsightedness and cause the myopia to worsen.

To compensate for this, the new contacts incorporate different focal points within a single lens by either confining the focal points to the outer edge or alternating them across the lens. In experiments, the technique was successful in reducing “the elongation of the eye that causes myopia progression.”

Image: Julie R.

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[GIZMAG.COM]
[OSA]

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