With Lens Transposition, you can transpose one lens formula to the others with ease. Simply select the type of lens formula that you will input, enter the required details and click transpose. The result will be out in no time!

Features
—  Transpose to and from minus cylinder form
—  Transpose to and from plus cylinder form
—  Transpose to and from cross cylinder form
—  Support for dark theme

Fork this project on Github at https://github.com/kevintresuelo/lens