Myopia is cause by the shape of the eyeball being longer than the focal length of the lens. The eye focuses light from distant objects onto the front of the retina, causing blurred vision. People who are nearsightedness can see objects that are close up
Children development is the change or growth in various aspects of the children, starting from birth until the time they start walking, covering a total period of preschoolers. children usually have developmental changes every month, both physically, intellectually and language-wise, and socially. At this age,