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Lens
Parameters |
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Horizon 55 Toric |
Base Curve |
8.6 |
Diameter |
14.5 |
Sphere Range |
+2.00 to -6.00 |
Cylinder Range |
-0.75 to -2.50 |
Axis |
180° ± 30°or 90° ± 30° |
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Horizon 55 Toric
Division I |
Base Curve |
8.3, 8.6, 8.9 |
Diameter |
14.0, 14.5, 15.0 |
Sphere Range |
+4.00 to -8.00 |
Cylinder Range |
-0.75 to -2.50 |
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Horizon 55 Toric
Division II
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Base Curve
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8.3, 8.6, 8.9
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Diameter
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14.0, 14.5, 15.0
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Sphere Range
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+10.00
to -10.00
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Cylinder Range
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-0.75 to -5.00
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Horizon 55 Toric
Division III
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Base Curve
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8.3, 8.6, 8.9, 9.2
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Diameter
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14.0, 14.5, 15.0
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Sphere Range
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+20.00 to -20.00
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Cylinder Range
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-0.75 to -10.00
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WESTCON offers the widest range of parameters.
For parameters not listed
call
1-800-346-4303 |
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Step
1 - BASE CURVE SELECTION
For Toric Diagnostic OR Initial Patient Lens
An 8.6 lens in a 14.5 diameter will fit the vast
majority of eyes and should be the first base curve selected
although flatter or steeper base curves are available.
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Flattest Keratometry
Measurement
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Initial Base Curve and
Diameter
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38.00 to 41.00
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8.9/14.5
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41.25 to 45.00
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8.6/14.5
8.9/15.0
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45.25 to 48.00
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8.3/14.5
8.6/15.0
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