Do the lens maker convert the positive cylinder value to negative cylinder?Should the customer convert the positive CYL to negative when ordering eyeglasses online?Will it make any change if postive cyl is not converted to negative while ordering glasses online though the end result is same?
I visited an opthalmologist and following is my prescription:
Right:SPH 0 CYL +0.5 Axis 80°
Left:SPH 0 CY
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