Opterio

資訊

功能

Transposes a spectacle Rx between plus and minus cylinder, showing each step., Finds the spherical equivalent and the nearest quarter-diopter powers., Compensates an Rx for vertex distance, such as glasses to contact lenses., Works out induced prism and base direction with Prentice's rule., Estimates lens edge or center thickness and compares lens materials., Calculates the minimum blank size for a frame and a patient's PD., Estimates a lens base curve from the prescription with Vogel's formula., Finds lens power from the front and back curves, including back vertex power., Combines or resolves prism, with the base direction in 360-degree notation., Works out a GP contact lens power from K readings, Rx and base curve., Estimates a near PD from the distance PD and the reading distance., Works out a frame's effective diameter (ED) for blank size.

開發者

I Done Study LLC

類別

Education & Research

網站

版本

1.0.0

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