Contact Lenses

  Specifications:Regular corridorFitting cross: +2.0mm up from centerDistance circle: +8.0mm up from centerNear area circle:17.0mm&8 degree down the center & to the lens sideAverage width in the corridor:7mm(in 1.0 diopter scale)Maximum astigmatism: No more than specific add. (in the 50mm circle)Short corridorWidth of far vision zone 0.5d 10.4mm(2mm above mrp) 1.0d clearWidth of near vision zone 0.5d 23.0mm(8mm above mrp) 1.0d clearHeight of iso-astig. Line above 0.5d 6.8mm0--180 line (17mm from mrp) temporal 0.5d 5.5mmWidth of reading zone 0.5d 8.3mm(14mm below mrp) 1.0d 14mmFitting cross: Up from center 2.0mmStart of progressive above mrp -2.0mmEnd of progressive above mrp 14.0mmMaximum astigmatism -2.50dCorridor width 0.5d 4.6mm1.0d 8.7mmMinimum fitting height 17mm