Short SightednessNear Sightedness - OK and Then What?
February 9th, 2010 by
Administrator
There are many short sighted people in the world. It is probably the most frequently encountered reason for needing to wear spectacles - at least in more modern countries where blindness due to nutritional deficiencies or infections are uncommon. Essentially, the difficulty with this condition is that the eyeball is simply too lengthy to allow the light from a distant object to be focussed into view, quickly enough by the eye’s cornea and lens system. Therefore there is a blurry feel to the image which is relayed onto the back of the retina. The eyeball is simply too long compared with the focusing power of the cornea and lens. This means light rays from objects in the distance are focused in front of the retina because they’ve been bent too much by the cornea and lens.
You often find that children become naughty or look at things with screwed up eyes to try to see the teacher better in class, when really the problem is that they have near sightedness. You commonly find that younger people suffer from this condition more than older people, at least that’s when the problem starts. Hence, you find kids getting teased about wearing spectacles at school.Actually the problem can even get better as an adult, as the muscles controlling the lens get weaker or stiffer
So, what are your options are curing short sightedness? Near sightedness can be corrected with a concave lens that makes the light rays diverge and focus accurately on the retina. Sometimes, laser surgery can reshape the cornea.Alternatively, you could buy some spectacles to solve the problem.
Posted in Shopping Hub, University of Self Improvement, University of Medicine |
Comments Off
