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Myopia

Myopia

(Science: ophthalmology) That error of refraction in which rays of light entering the eye parallel to the optic axis are brought to a focus in front of the retina, as a result of the eyeball being too long from front to back (axial myopia) or of an increased strength in refractive power of the media of the eye (index myopia).

also called nearsightedness, because the near point is less distant than it is in emmetropia with an equal amplitude of accommodation.

For an example, look at pupilEyes.com

Origin: gr. Myein = to shut


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CHROMOSOMES

... this is from a peer-reviewed journal: “Corrective lenses were invented far too recently to have allowed a substantial increase in genes that cause myopia. This argument is supported by the dramatic myopia increase in native groups newly subjected to formal education in childhood (Young et al., ...

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by lg1
Wed Jul 04, 2007 2:35 pm
 
Forum: Cell Biology
Topic: CHROMOSOMES
Replies: 15
Views: 9585

spectacles

A big miopia is -10. Myopia is corrected with spherical lenses. Big myopia? It would be me then...I got a -11 for both eyes.. :( and I also have a starbism at about 3.5.....if I had to put out my glasses, it feels like I'm a blind man.. ...

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by victor
Wed Aug 02, 2006 12:13 pm
 
Forum: Human Biology
Topic: spectacles
Replies: 10
Views: 3997

spectacles

... is very small, -0.75 and -0.50 respectively. I wear glasses with a prescription of -3.50 and -3.75. I have medium miopia. A big miopia is -10. Myopia is corrected with spherical lenses. If your doctor said that you need to wear your glasses permanently then you probably also have strabism. ...

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by MrMistery
Tue Aug 01, 2006 6:19 pm
 
Forum: Human Biology
Topic: spectacles
Replies: 10
Views: 3997

Eye Power????

causes of myopia Contrary to what some believe, you can be born with the predisposition to myopia and you can also develop myopia to some degree. Most of the information is common knowledge to optometrist but there are varying ...

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by kiekyon
Wed Apr 12, 2006 4:37 am
 
Forum: Human Biology
Topic: Eye Power????
Replies: 7
Views: 5348

Eye Power????

both r caused due to change in lens curvature myopia is caused due to elongation of the eyeball thus the image is formed in front of the retina for hypermetropia the image is formed behind the retina due to lesser refraction by the lens

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by swatkat
Sat Apr 08, 2006 9:47 am
 
Forum: Human Biology
Topic: Eye Power????
Replies: 7
Views: 5348
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