Presbyopia usually occurs beginning at around age 40, you may experience eyestrain and blurred near vision when reading, looking at your phone or working at the computer. Presbyopia is the age related onset of blurred near vision and it happens to everyone. Presbyopia occurs whether you are nearsighted, farsighted, astigmatic, or have never worn a correction. Progressive lenses are the most common correction, multifocal contacts, and reading glasses are also alternatives. Many people wear a combination of these corrections depending on their occupation and hobbies.