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DioRad is a free optical calculator tool for opticians, optometrists and ophthalmologists and lab technicians. DioRad comes integrated with Optizone.

Use DioRad to do all your diopter to radius conversions. Calculate lens power at different vertex distances. Calculate manifest over refraction even with cross cylinders. Use DioRad to calculate contact lens power and toric lenses as well. Calculate lens transposition at any time. No need for diopter conversion tables or charts. No need for radius conversion tables or charts. No need for formulas or equations to remember. 

Instructions:  
To convert diopters into radius of curvature, type in the diopter power and push "Calculate R". To convert radius of curvature into diopters , type in the radius in mm and push "Calculate D". 

To use the vertex distance conversion tool, type in the power, select the vertex distance that the power was examined at, select the new vertex distance, and push "Calculate P". For contact lens power, the new vertex distance is zero. Vertex distance 13.5 is only the default vertex distance and can be changed as required.

To use the manifest over refraction (MOR) tool, type in the current prescription of the client, add the MOR and click "Calculate M". Use the transpose button as required. 

Diorad tool comes integrated with every copy of Optizone Enterprise.

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