Myopia, or nearsightedness, is a very common vision problem. Nearsighted people often have headaches or eyestrain and might squint or feel fatigued when participating in activities. If you encounter these symptoms wearing your current eyeglasses or contacts you may need a stronger prescription.
Causes of Myopia
Myopia occurs when the eyeball is slightly longer than usual from front to back. This causes light rays to focus at a point in front of the retina, rather than directly on its surface.
Nearsightedness runs in families and usually appears in childhood. This vision problem may stabilize at a certain point, although sometimes it worsens with age.
Myopia may be corrected with eyeglasses, contacts or refractive surgery. Depending on the severity you may need to wear eyeglasses or contacts always, or only when you need sharper distance vision for daily activities.
If your glasses or contact lens prescription begins with minus numbers, like -2.50, you are nearsighted.
Refractive surgery is another option for correcting myopia. This includes laser procedures such as LASIK and PRK, or non-laser options such as corneal inserts and implantable lenses. One advantage of the non-laser options is that, although they’re intended to be permanent, they may be removed in case of a problem or change of prescription.
Orthokeratology is another possible treatment. You wear special rigid gas permeable contact lenses that temporarily reshape the cornea, usually while you sleep. When you awake the you will have clear, sharp, natural vision for your waking hours without eyeglasses or contact lenses.
If you experience any signs and symptoms of myopia please visit your nearest eye care practitioner and get your eyes tested. If you already wear eyeglasses or contact lens ensure periodic checkup to keep myopia under control.