What is it called when one of your eyes is near sighted but the other eye is far sighted?

Anisometropia: Any big difference in eyeglass power (>2.50) is called anisometropia, and makes it difficult to wear glasses successfully. Often the patient wears contacts. If the difference in near and farsightedness (example r eye -0.50 and l eye +0.50, difference 1.00) is small, then the fact that one is slightly near and the other is slightly far shouldn't bother the patient too much.