This chapter is a part of the Myopia series. The entire series will include multiple chapters about Adult and Childhood Myopia, Myopia progression, practical approach to halting myopia progression in children and so on.
Refractive Error or Ametropia is a condition when the rays of light cannot directly focus on the retina. It focuses either in front of the retina or behind the retina.
Ametropia consists of Myopia, Hypermetropia & Astigmatism. Many studies conducted across the globe about refractive errors has always shown that Myopia is the commonest and highly spread error.