Myopia is additionally referred to as near-sightedness because people who are afflicted by it can see close up things in focus, but far away items look blurry.

Short sightedness can often develop rapidly in kids as they grow, getting worse in teenage years.  When you get into your twenties the problem has a tendency to stabilize.

Nearsightedness is often identified in kids because of the inclination of these youngsters to squint at objects.

So what on earth specifically causes Nearsightedness?

To understand this, we have to understand a little about the structure of the eye.

At the rear of the eye is the retina.  You can think of the retina to be just like a movie theater screen upon which the world around you is focused.  As you look about you, light from the objects you are looking at goes through the exterior surface of your eye (the cornea), passing through the iris and lens, and finally on to the retina.  As the light passes through all these layers, it is actually bent so the images are focused on the retina.

Myopia is a problem in the eye that causes images coming into the eye to focus in front of the retina. This means that the image is going to be blurry and out of focus.

Nearsightedness may be caused by one of the following:

1. The cornea (the outer surface of the eyeball) is too curved.

2. Your eyeball is too long.

Whenever a person being affected by Nearsightedness looks at distant subjects, the light rays from these distant objects are near enough parallel to each other.  To focus the image, the rays must be bent so that they converge onto the retina at the rear of the eye.  However, as a result of problems stated earlier, the rays are bent too much and converge in front of the retina.

Even so, when somebody suffering from Myopia focuses on a nearby object, the rays of light coming from those nearby things enter the eye at an angle, meaning the light needs to be bent a lot more, and in this instance, the rays do focus properly onto the retina, thus near vision just isn’t influenced by the myopic condition.

When someone wears glasses or contact lenses to fix myopia, those lenses guarantee that the light getting into your eye converges onto the retina, and in doing so bringing pictures into focus.

An additional solution to fix Myopia is lasik eye surgery, where the surgeon can change the shape of the cornea making sure that light focuses correctly.