Myopia (also called shortsightedness) is the most common cause of impaired vision in people under age 40. In recent years, its prevalence is growing at an alarming rate.
Myopia can be cause by a genetics and environmental factors. During childhood and adolesence a number of environmental factors can have an effect on the way our eyes are formed and can contribute to delevoping myopia.
Environmental influences include excessive near work, reading, studying, computer and tablet use, and time spent indoors. Significant growth of the eye occurs in children between the ages of 6 and 12. During this critical time, factors which increase the risk of abnormal elongation growth of the eye will result in myopia.
Treatment of Myopia
Depending on the degree of your myopia, you may need to wear your glasses or contact lenses all the time or only when you need very clear distance vision, like when driving, seeing a whiteboard or watching a movie.
Good choices for spectacle lenses for shortsightedness include high-index lenses (for thinner, lighter spectacles) and lenses with anti-reflection coating. Also, consider photochromic lenses to protect your eyes from UV rays and to filter blue light.