The fixation point
A)determines the horopter.
B)falls on either side of the horopter.
C)will always be closer than the horopter.

Question

Quizplus · Accepted Answer

The fixation point is the point in space that is being fixated by both eyes simultaneously. It is the point from which the visual axes of both eyes converge. The position of the fixation point determines the position of the horopter, which is the imaginary surface in space where objects appear single and binocular depth perception is accurate. Therefore, choice A is correct. Choices B and C are incorrect because the fixation point can fall on either side of the horopter and can be at different distances from the horopter, depending on the visual task and the position of the objects being fixated.

The Fixation Point