Eye Fatigue occurs usually during visual tasks such as computer and reading or can be related to visual skills like eye tracking and eye focusing. It can also be associated with the individual’s eyeglass prescription. The prescription may change with time due to normal aging factors. Normally eye fatigue occurs as you get older due to the inability of our inner eye muscles to contract, which is called presbyopia. This is when bifocals or progressive lens help to minimize eye fatigue. However, if this eye fatigue is persistent and not going away with corrective eyeglasses, then a binocular dysfunction may be the reason.