McCray Optical Equations

The McCray Opticianry Equations app was designed to simplify the solving of equations for Opticians, Optometrists, Ophthalmologists and students alike.

This app contains over 100 related equations that an Optician or Optometrist may encounter throughout their academic and professional career. Use this app to quickly calculate both simple and complex equations including:
- Prentices rule
- Compensative power (Power as a function of Vertex distance)
- Pantoscopic tilt
- Wraps
- True Power and many more.

A simple and intuitive system allows you to pick your desired equation and solve for all variables. And a favorites section allows you to easily access frequently used equations. You can also solve for all variables in a given equation!