Myopia, also known as nearsightedness, is a refractive error that affects a large portion of the population. It is caused by the eyeball being too long or the cornea being too curved, which results in light rays not being focused properly and leading to blurred vision when looking at objects in the distance.

To correct myopia, glasses with concave lenses are needed. These lenses are thicker at the edges and thinner in the middle, which allows them to diverge the light rays entering the eye and shift the focal point back onto the retina. The strength of the concave lenses depends on the degree of myopia, with higher prescription numbers indicating more severe myopia.

When choosing glasses for myopia, it is important to consider not only the prescription strength but also the frame style and material. Frames made of lightweight materials such as titanium or plastic can be more comfortable to wear for long periods of time, while styles such as rimless or semi-rimless can be more aesthetically pleasing.

In addition to glasses, there are other options for correcting myopia such as contact lenses and orthokeratology, which involves wearing special lenses overnight to reshape the cornea temporarily. However, glasses remain the most common and convenient solution for most myopic individuals.

If you are experiencing blurred vision when looking at distant objects, it is important to schedule an eye exam with an optometrist or ophthalmologist to determine the extent of your myopia and obtain a prescription for the appropriate eyeglasses. Properly correcting your myopia can not only improve your vision but also help prevent eye strain and headaches.