Myopia, also known as short-sightedness or near-sightedness, is one of the eye conditions that come under the heading of Refractive Errors.
Refraction is the bending of light, and this is what the cornea (the clear part at the front of the eye) does to the light that enters the eye. The spherical cornea is supposed to bend light evenly so that it hits one single point on the retina at the back of the eye to form a sharp image.
However, many people have irregularly shaped corneas, which do not bend or refract light evenly, so they have trouble forming a clear image.
In people with Myopia, the curve of the cornea is too steep, or the eyeball itself is too long, so the light gets focused in front of the retina instead of directly on it. This causes objects that are far away to appear blurry and out of focus.
Myopia is often hereditary and usually develops in childhood or adolescence when the body undergoes rapid growth; it can occur in adults also and people have to rely on glasses or contact lenses to enable them to see objects in the distance clearly.
Myopia can be corrected at Optilase with Laser Eye Surgery by removing tiny amounts of tissue from the centre of the cornea, so that its curve is flatter and light can land directly on the retina for clear vision.
Myopia does get progressively worse during your youth and while you are still growing. This causes people with myopia to change their contact lens or eyeglass prescription frequently. However, myopia may stabilise when you have stopped growing; in your twenties, so your prescription (or degree of short-sightedness) will stabilise.
Once your prescription has stabilised, it makes you a good candidate for laser eye surgery which will fully correct myopia. Laser eye surgery will reshape the cornea and allow light to focus on the retina so you can once again form a sharp image, without having to rely on corrective eyewear.