Uncorrected nearsightedness may cause you to squint or strain your eyes to maintain focus. This can lead to eyestrain and headaches. Impaired safety. Your own safety and that of others may be jeopardized if you have an uncorrected vision problem.

What causes eyes to squint?

In children, a squint is often caused by the eye attempting to overcome a vision problem, such as: short-sightedness – difficulty seeing things that are far away. long-sightedness – difficulty seeing nearby objects. astigmatism – where the front of the eye is unevenly curved, causing blurred vision.

Does myopia affect eye shape?

Myopia, the most common vision problem across the world, is caused by abnormal eye shape. Generally myopic eyes are longer than normal—the distance from the cornea to the retina is greater than in a normal eye.