What term describes an eye that tends to turn upwards?

The term that describes an eye that tends to turn upwards is called hyperphoria. This condition involves a vertical misalignment of the eyes, where one eye may be higher than the other when they are in a neutral position. Hyperphoria can manifest as a tendency or a greater deviation when the eyes are subjected to certain conditions, like fatigue or stress.

In the context of the options provided, hyperphoria accurately describes this upward deviation, distinguishing it from conditions that involve horizontal or downward misalignments or other types of eye positioning. Understanding this distinction is crucial for interpreting eye conditions accurately, as it affects not just diagnosis, but also the approach to treatment and management.