Does Your Vision affects at the age of 40 ?

 As we age, our vision changes.The muscles in the eye lose their flexibility, making it harder to see things closer or  distances farther. At the back of the retina, almost exactly opposite to the pupil, lies a small spot called the macula.  A tiny depression at its center is known as the fovea. Composed of densely packed cones, the fovea is responsible for great visual acuity, or sharpness. But with age, the macula often breaks down- what's known as macular degeneration. Blood vessels behind the retina can leak, causing loss of central vision. Sometimes, laser procedures can seal off the leakage; more often, though, nothing can be done, and the condition must be monitored and controlled with medication.

As we age, the eye's lens naturally loses elasticity. Eventually, it can't flex sufficiently to focus on nearby objects. This is why people starting in their 40s hold objects farther and farther away in order to be able to read them. When they run out of arm, it's time to get eyeglasses.