The invention provides methods and lenses for reducing asthenopia related symptoms associated with proprioceptive disparity. In certain aspects, lenses of the invention include a distance portion and a near portion, and a progressive increase in minus power from the distance portion to the near portion. Additionally, lenses of the invention may include a prism and a progressive reduction in optical power, in which the prism and the progressive reduction are varied independently. In one embodiment, a lens is provided that has a base-in prism and that provides an increase in minus power from the distance vision portion of the lens to a near vision portion of the lens (i.e., a progressive reduction).
Methods and lenses for alleviating asthenopia