Progressive Contact Lenses For Astigmatism

contact lenses
(Contact lens) A small plastic disc containing an optical correction that is worn directly on the cornea as a substitute for eyeglasses.
(contact lens) A thin lens, made of flexible or rigid plastic, that is placed directly on to the eye to correct vision, used as an alternative to spectacles, or, if coloured, to change one's eye color cosmetically
A thin plastic lens placed directly on the surface of the eye to correct visual defects
(contact lens) contact: a thin curved glass or plastic lens designed to fit over the cornea in order to correct vision or to deliver medication

progressive
A person advocating or implementing social reform or new, liberal ideas
a tense of verbs used in describing action that is on-going
A progressive tense or aspect
favoring or promoting reform (often by government action)
Each of a set of proofs of color work, showing all the colors separately and the cumulative effect of overprinting them
favoring or promoting progress; "progressive schools"

astigmatism
(optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point
A defect in the eye or in a lens caused by a deviation from spherical curvature, which results in distorted images, as light rays are prevented from meeting at a common focus
(ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea; common in nearsighted people
(astigmatic) of or relating to a defect in the eye or in a lens caused by a deviation from spherical curvature which prevents light rays from meeting at a common focus and so results in distorted images