Myopia is known by most people as short or near 

 sight and is one of the commonest eye defects. As

 the name implies, myopes are able to see perfectly

 well close up but find their distance vision is 

 blurred. It’s usually caused by the eyeball being not

 quite spherical (it’s more like a rugby ball than a

 football) and means that light is focussed in front of

 the retina, so that the image reaching it is blurred.

 It’s very easy to remedy with spectacles, using a

 single-vision lens. If you have a large prescription,

 you may find that the edge of your spectacle lenses

 may be quite thick, so you may benefit from thin

 and light lenses that greatly reduce this. Larger

 prescription lenses may also show unsightly

 ‘power rings’ though a good quality anti-reflection 

 coating like Crizal Forte will greatly reduce its

  impact.