Suffering from presbyopia or a condition of vision commonly seen after the middle forties but beginning in late childhood (after age eight), as a result of diminished power of accommodation from impaired, or reduced, elasticity of the crystalline lenses of the eyes.

The condition of having presbyopia: Tom asked his grandfather if he was suffering from presbytism because he could only see things sharp in the far distance, but very blurry at close range, like trying to read the newspaper!