Product features
Lens type Toric lenses |
Product type toric hard lens |
BIAS-F BTC ( bitoric compensated )
Hard gas permeable, individually manufactured contact lens with UV filter.
The BIAS-F BTC has a toric back surface in BIAS® design, combined with a toric front surface. The torus of the anterior surface is chosen to be large enough to compensate for the induced astigmatism of the posterior surface. This gives the BIAS-F BTC the effect of a spherical contact lens on the eye.
Please order this type of lens only if you are already wearing it successfully.
It will be made individually for you. Exchange, cancellation or return, even if the contact lens is in perfect condition, are excluded.
The BIAS-F BTC has a toric back surface in BIAS® design, combined with a toric front surface. The torus of the anterior surface is chosen to be large enough to compensate for the induced astigmatism of the posterior surface. This gives the BIAS-F BTC the effect of a spherical contact lens on the eye.
Please order this type of lens only if you are already wearing it successfully.
It will be made individually for you. Exchange, cancellation or return, even if the contact lens is in perfect condition, are excluded.
Delivery range of BIAS-F BTC:
BC-1:
6.50 to 10.0 in 0.05 increments
BC-2:
6.50 to 10.0 in 0.05 increments
Power-1:
25.00 to -25.00 in 0.25 increments
Power-2:
25.00 to -25.00 in 0.25 increments
DIA:
7.0 to 12.2 in 0.1 increments
Materials:
various (see images selection box)
Engraving:
To better distinguish right and left lens, one lens can be optionally engraved with a light or dark dot
BC-1:
6.50 to 10.0 in 0.05 increments
BC-2:
6.50 to 10.0 in 0.05 increments
Power-1:
25.00 to -25.00 in 0.25 increments
Power-2:
25.00 to -25.00 in 0.25 increments
DIA:
7.0 to 12.2 in 0.1 increments
Materials:
various (see images selection box)
Engraving:
To better distinguish right and left lens, one lens can be optionally engraved with a light or dark dot