Your lens is just behind the colored iris in your eye. It changes shape to focus light from near and far images onto your retina. In young people the lens soft and flexible and easily changes shape. After 40 the lens becomes more rigid and cannot change shape as easily. This causes the difficulty in reading and other close up tasks.
There is no way to stop or reverse the normal aging process that causes presbyopia. It can however be corrected with glasses, contact lenses or eye surgery. Speak to your optometrist about reading glasses, bifocal or trifocal glasses or contact lenses. The other option will be to speak to your ophthalmologist about presbyopia correcting eye surgery. If you do not correct presbyopia you may get headaches due to eyestrain.
There are two surgical options for presbyopia:
Clear Lens Exchange