Mandell Moore Bitoric Calculator will figure basic fit for rigid gas permeable contact lens.
This is the Mandell-Moore Bitoric Lens Guide in calculator form. For those of us out their who fit contact lenses you know what this is and what it is worth. Enjoy.
Instruction for use of the Mandell-Moore Bitoric Lens Guide:
1) Determine the need and parameters for a bitoric lens
2) Place the keratometer readings in the boxes marked keratometry reading this measure is in diopters
3) Place the spectacle Rx in minus cylinder form in the boxes next to the spectacle lens Rx Sphere in the first box Cylinder in the second box and the Axis in the third box following the large X.
4) If patient was refracted at a vertex distance other than 12mm place this value in the VD box this measure is in mm
5) Press the Calculate drum values button.
