Check out the updated version of the Army PFT. The Army's Basic Training Physical Fitness Test is a three-event physical performance test used to assess endurance. It is used to measure a your physical strengths, abilities, and cardio-respiratory fitness.
1 doctor agreed: See ophthalmologiist: Light flashes in the periphery of your vision are usually caused by either a problem in your eye called vitreous detachment or ocular migraine. You need to see an ophthalmologist soon for a dilated eye exam to be sure your retina is OK.
Something requires extra attention. At an intersection, a flashing circular yellow means to take extra caution, and watch for traffic on the cross road (which has a flashing red light). A flashing red light is the same as a stop sign.