The far point for a myopic eye is caused by what type of object?

The far point for a myopic eye is caused by what type of object?

• A. Real
• B. Virtual
• C. Both
• D. Neither

Answer: (A)

The far point is the location in space where an object would have to be placed for the eye to form a clear image on the retina without accommodation. In myopia, distant light is focused in front of the retina, so the far point lies in front of the eye. That means an object at that distance is a real object, and its light forms a real image on the retina with the eye relaxed. A virtual object wouldn’t correspond to a physical location in space that can produce a sharp retinal image without changing focus. So the far point is determined by a real object.

The far point is the location in space where an object would have to be placed for the eye to form a clear image on the retina without accommodation. In myopia, distant light is focused in front of the retina, so the far point lies in front of the eye. That means an object at that distance is a real object, and its light forms a real image on the retina with the eye relaxed. A virtual object wouldn’t correspond to a physical location in space that can produce a sharp retinal image without changing focus. So the far point is determined by a real object.