Toric

toriflex-logo

Toriflex are toric RGP lenses with two different designs. One Bi-Toric and a Front-prismatic toric variation depending the cornea topography and prescription. This guaranties an easy  and fast fit procedure.

Geometry

  • Torical/Spherical front and back optic zones
  • 2 different variants:

toriflex-BT-logo

  • Bitoric
  • 1 aspherical flattening
  • ΔrCfl-rCst: Kreading difference of ≥ 4/10 mm

toriflex-TP-logo

  • Front toric prismatic
  • 1 aspherical flattening
  • ΔrCfl-rCst: Kreading difference < 4/10 mm

tBT  tTP

Technical data

  • Total diameter: 8.00 -> 10.00 mm
  • Base curve: 6.00 -> 9.00 mm
  • Sphere: -30.00 -> + 20.00 dpt
  • Cylinder: -0.25 -> -8.00 dpt / ΔrOfl-rOst 0.00 -> 8.00 dpt
  • Axe: 0° -> 180°
  • Flattening: Standard (std), flat (+), step (-)

steps 0.01 mm / 0.01 dpt / 1°

First fittingrgp toriflex image

  • Spectacle power must be converted into contact lens power (VD =0)
  • Total diameter: = standard 9.50 mm
  • Bitoric Geometry (BT):  
    • If astigmatism with the rule (WTR) flat K @ 0° ± 30°
      • r0fl = rcfl – 0.05 / r0st = rcst + 0.05
      • F’afl = Sph − 0.25 dpt
      • F’ast = Sph + (-Cyl) + 0.25 dpt
    • If astigmatism against the rule (ATR) flat K @ 90° ± 30°
      • r0fl = rcfl + 0.05 / r0st = rcst – 0.05
      • F’afl = Sph+ 0.25 dpt
      • F’ast = Sph + (-Cyl) – 0.25 dpt
    • If astigmatism oblique flat K @ 135° ± 15°/ 45° ± 15°
      • r0fl = rcfl / r0st = rcst
      • F’afl = Sph
      • F’ast = Sph + (-Cyl)
  • Fronttoric prismatic (TP):
    • r0 = rcfl – 0.05
    • F’v: SphCL = Sph − 0.25 dpt / CylCL = (-Cyl) + ((rcfl-rcst)*5) / A°CL = A° glasses

Materials, except Paragon thin

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