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News tagged with myopia

24 new genes for short-sightedness identified

An international team of scientists led by King's College London has discovered 24 new genes that cause refractive errors and myopia (short-sightedness).

Genetics created Feb 10, 2013 | popularity 5 / 5 (3) | comments 1 | with audio podcast

Researchers identify gene that leads to myopia (nearsightedness)

A Ben-Gurion University of the Negev research group led by Prof. Ohad Birk has identified a gene whose defect specifically causes myopia or nearsightedness.

Genetics created Sep 01, 2011 | popularity 5 / 5 (2) | comments 2 | with audio podcast

Research identifies gene mutations associated with nearsightedness

People have long taken for granted that glasses and contact lenses improve vision for nearsightedness, but the genetic factors behind the common condition have remained blurry. Now researchers at Duke Medicine ...

Genetics created May 02, 2013 | popularity 5 / 5 (2) | comments 2 | with audio podcast

More time outdoors may reduce kids' risk for nearsightedness

A new analysis of recent eye health studies shows that more time spent outdoors is related to reduced rates of nearsightedness, also known as myopia, in children and adolescents. Myopia is much more common today in the United ...

Health created Oct 24, 2011 | popularity 5 / 5 (1) | comments 0

Time outdoors may reduce myopia in children

(HealthDay) -- Increasing time spent outdoors may reduce the development or progression of myopia in children and adolescents, according to a study published online July 20 in Ophthalmology.

Ophthalmology created Jul 30, 2012 | popularity 5 / 5 (1) | comments 0

Eyes on the sun: Child sunshine exposure and eye development

(Medical Xpress)—Exposure to sunshine as a small child is crucial to the development of a healthy eye according to results of long-term myopia study conducted by University of Sydney researchers.

Ophthalmology created May 21, 2013 | popularity 5 / 5 (1) | comments 0

Clear-sighted research identifies genes for eye problems

(Medical Xpress)—More than 45,000 people of European and Asian ancestry have taken part in a big study to gain a better understanding of the genetics behind the world's most common eye disorder.

Genetics created Feb 21, 2013 | popularity 4 / 5 (1) | comments 0 | with audio podcast

'OK' contact lenses work by flattening front of cornea, not the entire cornea

A contact lens technique called overnight orthokeratology (OK) brings rapid improvement in vision for nearsighted patients. Now a new study shows that OK treatment works mainly by flattening the front of the cornea, reports ...

Ophthalmology created Mar 04, 2013 | popularity 4 / 5 (1) | comments 0

Playing outdoors looks good for children's eyesight

British children who spend more time outdoors are less likely to become short-sighted according to new research from the Children of the 90s study at the University of Bristol.

Ophthalmology created Aug 02, 2012 | popularity 3 / 5 (1) | comments 1

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.

For more information about Myopia, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.

Related topics: children , eye