A free vertex distance calculator (sphere and cyl) for use in Optometry.
This is a free vertex distance calculator for use in Optometry that supports both sphere and cyl conversions. This was essentially a Christmas present for my wife, who's a student at UHCO (University of Houston College of Optometry). However anyone is free to use it. 100% free and NO ADS. Please rate the app if you like it!Read more
