News tagged with myopia

Related topics: children , eye

Are our schools damaging children's eyes?

Shockingly, research has shown a dramatic increase in the number of students leaving secondary school with short-sightedness, or myopia, and a new study published in the Journal Perspectives in Public Health, published by SAG ...

Mar 24, 2015
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Alarming increasing incidence of myopia

New research on myopia—how it develops, risk and protective factors, and potentially effective measures for prevention and treatment are reported across twenty articles in the November issue of Optometry and Vision Science, offici ...

Oct 30, 2013
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Scientists help identify genes causing myopia

Two researchers from The Hong Kong Polytechnic University (PolyU) are taking an active role in a global study which has unlocked the genetic origin of myopia. Through their collaboration with the Consortium for Refractive ...

Jun 04, 2013
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Myopia

Myopia (Greek: μυωπία, muōpia, "nearsightedness" (AmE), "shortsightedness" (BrE)) is a refractive defect of the eye in which collimated light produces image focus in front of the retina under conditions of accommodation. In simpler terms, myopia is a condition of the eye where the light that comes in does not directly focus on the retina but in front of it. This causes the image that one sees when looking at a distant object to be out of focus but in focus when looking at a close object.

Eye care professionals most commonly correct myopia through the use of corrective lenses, such as glasses or contact lenses. It may also be corrected by refractive surgery, though there are cases of associated side effects. The corrective lenses have a negative optical power (i.e. are concave) which compensates for the excessive positive diopters of the myopic eye. Myopia is partly hereditary.

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