Question

A student is unable to see clearly the words written on the blackboard placed at a distance of approximately 3m from him. Name the defect of vision that the boy is suffering from

Answer 1

myopia is that defect in the eye of student.

Answer 2

Since the student can't see particularly the words composed on the blackboard which is at a separation of around 3mm from him, the student is experiencing nearsightedness or myopia. A nearsighted eye has its far point closer than infinity. It frames the picture of an inaccessible object before its retina. To revise a nearsighted eye, the inward focal point of a reasonable central length is utilized. Utilizing the curved focal point of appropriate power, the image is permitted to shape at the retina.

1) Myopic Eye

2) Correction of nearsightedness utilizing the concave lens.