Bi-toric

Bi-toric

  • Use

    12-24 months
    (depending on the selected material)

A bi-torical contact lens has two base curve radii, perpendicular to each other, ensuring that a good fit achieved. The edge clearance is different in the two meridians; the largest edge clearance is on the deepest meridian because the peripheral radius is the same in the two main directions and because the periphery width is different.

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Benefits

  • Less local pressure on the cornea
  • Comfortable
  • Better centering

Application

For corneal astigmatism → 3.00 dpt.

Disadvantage

  • Moderate vision disorder due to the turning of the contact lens
  • In certain cases more problems with metabolism

B.C.R. 6.00 – 10.00 per 0.05 ascending

Power -/+ 40.00 per 0.25 ascending

Lens diameter 8.50 – 12.00 per 0.10 ascending

Cilinder 0.50 – 10.00 per 0.25 ascending

Do you have any questions and/or comments about this product? Please let us know!

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