Stock Photo - EYEGLASSES Progressive nasal decentered glass correction of presbyopia. The progressive glass enables a variation between the near vision at the bottom, the intermediary vision in the middle and the far vision on the top, without neither a rupture of the depth field nor blurry area. Contrary to a classical progressive glass symetry of the near vision areas, the nasal decentered glass nasal enables to adapt near vision for an individual highly myopic or hypermetropic of whom the eyes converge for the near vision. This image is part of a series concerning the correction of presbyopia. See. images 0351507 for the different ways of correction, 0351407 for the different types of glasses, 0352207 and 0352307 for the progressive glasses, 0352407, 0352507, 0352607 and 0352707 for the contact lenses, 0352907, 0443607 and 0443707 for the intra_ocular implants, 0353007, 0353107 and 0353207 for the Presbylasik, 0443507 and 0352807 for the scleral expansion.