New: Test for EveryOne at HOME, Finds Retinal problems for patients, Only 3.3 cents per test that takes less than 6 minutes. Your iPhone, you buy 30 tests for 99 cents, 3,3 cents/test.
Hold the phone at 12 inches and watch the print ABOVE 1 - 2 - 3, WATCH BRIGHT LIGHT, WATCH GREY LIGHT AND TAP WHEN THE GREY LIGHT TURNS WHITE. It is that simple, measures both retinas and times the response. Try couple of times to become use of the testing. Questions Call 305 389 0928