Seconds of Arc Calculator
Some Industries require a keen eye sight. For instance, driving a fork lift truck, operating a crane etc. One particular career of note is piloting an aircraft. For instance the USAF require you have a Seconds of Arc better than 40! before you are even considered as a fighter pilot. This has however been loosened to about 120 seconds of arc if you are able to obtain a waiver.
The EqualEyes Bubble game tests you to 130 seconds-of-arc. So if you can pass this test with flying colours then you can be confident you can meet your AFROTC entry requirements with a waiver.
Future editions of EqualEyes will test down to 40 seconds of arc.
If you are armed with the exact requirements in 3D Acuity, you can use the calculator below to determine the differences in distance you need to be able to differentiate to meet the requirement.