Is it true computer screens make our eyesight worse?

False: Computer screens do not make your eyesight worse. However, staring at a computer screen for hours on end (as in many occupations) can cause eye strain.

Not really true: Prolonged use of the eyes, especially for near tasks such as reading, sewing, or computer use, can certainly lead to "eyestrain" or tired eyes. No real harm is done, and resting the eyes by closing them for a few seconds, or staring at something far away instead of near by is helpful. In children, many eye doctors think that prolonged use of the eyes for near tasks, can increase myopia (nearsight).