Non-corrective lenses do not affect the direction of the rays of light. What they do affect is the composition of the light. Non-corrective lenses are filters blocking out some wavelengths of light in order to do not reach the human eye.

The usual treatment for farsightedness is corrective lenses (spectacles or contact lenses).

Corrective lenses

We use corrective lenses in spectacles. Near sight is corrected with diverging lenses and far sightedness with converging lenses.

In La. It's $235