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Spherical Equivalent Charts
(set of 2)
$10.00

These charts are a basic presentation of the mathematical formula used for spherical equivalency calculation.

They consist of 2 charts that help dispensing from -8 to +8 sphere with up to +/- 3 cylinder.

They can be used to adjust for cylinder amounts when proper cylinder correction is not available. These concepts are often applied in soft contact lens fittings in modern day vision care clinics.

Spherical Equivalent Charts <BR>(set of 2)
Click to enlarge
This product was added to our catalog on Saturday 04 December, 2010.
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