Dr. Bob Arnold shares this video of training how to use what he has called the "Burma Vision Optic Kit". It is a portable solution to refracting and dispensing of sphero-cylinder spectacles on site. Watch the video here to see how it is used.
Kit with 140 assorted sphere and cyl lenses, skiascopy racks. child- and adult spectacle frames, and portable retinoscope $2500.
For more information, contact Bob- or access through the Burma Vision website.