Relaxing my eyes

[mtbc]

When I am tired and using a computer then I can relax my eyes and the text goes blurry. Perhaps it was not always so but if that is a sign of my presbyopia then it crept up on me without my noticing. It is oddly different when I wear my reading glasses: I relax my eyes and the text drifts just a little out of focus then quickly back in again, resharpening. It is as if I weirdly can no longer relax my eyes.