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Other Ophthalmic Objects
/ Slide rule to calculate back vertex power from curvature and thickness of the lens
Other Ophthalmic Objects
Slide rule to calculate back vertex power from curvature and thickness of the lens
SKU:
Len 3
Category:
Other Ophthalmic Objects
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Description
Slide rule
Slide rule to calculate back vertex power from curvature and lens thickness.
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