Nearsightedness, also known as myopia, is a common refractive error of the eye in which close objects appear clearly, but distant objects appear blurry. The condition occurs when the eye is too long, or the cornea is too curved, which causes light to focus incorrectly on the retina. Other refractive errors of the eye include hyperopia, or farsightedness, and astigmatism.
Symptoms of nearsightedness include difficulty seeing distant objects, such as road signs or the whiteboard in school, squinting, and eye strain. Children and adolescents are more likely to develop nearsightedness, and the condition may progress as the eye continues to grow.
The most common treatment for nearsightedness is corrective lenses, such as eyeglasses or contact lenses. These lenses work by bending the light entering the eye in such a way that it is focused correctly on the retina.
In recent years, there have been advances in laser refractive surgery, such as LASIK and PRK, which can be used to correct nearsightedness by reshaping the cornea. These procedures use a laser to remove small amounts of tissue from the cornea, which changes its shape and corrects the refractive error.
Another treatment option is Orthokeratology (Ortho-K) which is a non-surgical method that uses custom-made contact lenses to reshape the cornea during sleep.
It is important for people with nearsightedness to have regular eye exams to monitor the progression of their condition and to adjust their prescription as needed. With proper management, people with nearsightedness can enjoy clear vision and good eye health.