Nearsightedness, or myopia, as it is medically termed, is a vision condition in which close objects are seen clearly, but objects farther away appear blurred. Nearsightedness occurs if the eyeballs are too large or the cornea, the clear front cover of the eye, has increased curvature. As a result, the light entering the eyes isn’t focused correctly and distant objects look blurred. Nearsightedness is a very common vision condition. Some research supports the theory that nearsightedness is hereditary. There is also growing evidence that it is influenced by the visual stress of too much close work. Generally, nearsightedness first occurs in school-age children. Because the eye continues to grow during childhood, it typically progresses until about age 20. According to literature, some parental factors like parental myopia, duration of breastfeeding, smoking, alcoholism may influence occurrence of prevalence of myopia among school children.
: Srivatsa Kuchibhotla