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Here is an example of a typical
contact lens prescription:
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|
Eye
|
Power
|
Base Curve (BC)
|
Diam.
Diameter
|
Brand/Type
|
|
Right (OD)
|
-3.25
|
8.4
|
14.0
|
Focus
|
|
Left (OD)
|
-2.75
|
8.4
|
14.0
|
Night & Day
|
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Here is an example of a typical
"toric" contact lens prescription:
|
|
Eye
|
Power
|
Cyl
|
Axis
|
BC
|
Diameter
|
Brand/Type
|
|
Right (OD)
|
-1.25
|
-1.75
|
10
|
8.5
|
14.5
|
Soflens 66
|
|
Left (OD)
|
-2.75
|
-1.25
|
170
|
8.5
|
14.5
|
Toric
|
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Power (sphere): the strength or amount of correction.
(usually number between -20.00 and +20.00)
|
Sign (-) or (+): very important!
( minus "-" for nearsighted & plus "+" for farsighted). |
BC (base curve): determines the curvature of a lens,
(a number between 8.0 and 9.3). |
Diameter: diameter or size of lens,
(a number between 13.0 and 15.0). |
Cyl - Cylinder: correction for astigmatism. Toric lenses only,
(usually a number between -0.50 and -4.75). |
Axis: correction for astigmatism. Toric lenses only,
(a number between 0 and 180). |
| Toric Lenses: Toric lenses include correction for astigmatism. |
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