Normally this is infinity. Nearest distance which objects are still in focus. Normally this about 25cm. This process is called accommodation. Problems occur when the relax eye does not have the correct focal length.
Bends far rays too much.
The correction for the myopic eye is a diverging lens. Does not bend far rays enough. The correction for the hyperopic eye is a converging lens. As we age the tissue of the lens become less pliable. Near point is farther out than 25cm.