Fig. (5b) Near vision is the vision for objects 30cm form the viewer. In this normalized Diopter measurement, larger number indicates better near visual acuity. Group A subjects showed increased near vision measurements indicating the eyes were accommodated to view near objects, or became myopic, even after the treatment. Note: Diopter is the inverse of focal distance, and this is commonly used to show the degree of myopia. Normal vision, emmetropia is 0 D, meaning the image is formed on the retina. However, low myopia, which is from 0 to -3D forms image before reaching retina, indicated by negative figure. Medium myopia is between -3D to -6D, and high myopia is -6D or less. In this graph the normalized value is used that is without negative sign.