Under proper correction, the distal point for both contact lenses and spectacles is Infinity. Which option best reflects this statement?

Under proper correction, the distal point for both contact lenses and spectacles is Infinity. Which option best reflects this statement?

• A. Infinity
• B. Near point
• C. Far point
• D. Proximal

Answer: (A)

Distal point is the point in space from which light must appear to originate so that, with the eye relaxed, distant objects form a sharp image on the retina. When proper correction is achieved, the eye can focus light from objects at infinity without needing accommodation, so that point sits essentially at infinity. This is true for both contact lenses and spectacles—the corrective lenses shift the optics so distant vision is clear with the eye relaxed, making the distal point at infinity. Near point would involve focusing for close objects with accommodation, and far point relates to where light would be focused if the eye were relaxed for uncorrected refractive errors, not to the corrected, emmetropic state described here. Proximal refers to distance to the object, not to the optical setup of correction.

Distal point is the point in space from which light must appear to originate so that, with the eye relaxed, distant objects form a sharp image on the retina. When proper correction is achieved, the eye can focus light from objects at infinity without needing accommodation, so that point sits essentially at infinity. This is true for both contact lenses and spectacles—the corrective lenses shift the optics so distant vision is clear with the eye relaxed, making the distal point at infinity. Near point would involve focusing for close objects with accommodation, and far point relates to where light would be focused if the eye were relaxed for uncorrected refractive errors, not to the corrected, emmetropic state described here. Proximal refers to distance to the object, not to the optical setup of correction.