CRT Calculator
OD
OS
RX Sphere:
K1 (Diopters):
K2 (Diopters):
VID *:
Optic Zone:
Jessen Factor:
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Results
OD
OS
Lens Type:
BC:
RZD1:
RZD2:
LZA1:
LZA2:
DIA:
PWR:
Material:
Tint: