Testing exercises 1 and 2 are quite difficult when done with one eye, simple when done with two. Object of first is to bring fingertips together from a foot apart, of second to step forward and touch pencil point. If using both eyes you fail tests, your eyes may not be fusing images properly and you may be misjudging distances, speed. To test depth perception (3), tie strings to front and back of toy car, then park it directly between two others. This is not as easy as it seems. In glare-resistance test (4), look through tube at 100-watt bulb for five seconds in semidarkness. Within seven seconds you should be able to read this page. Your peripheral vision (5) is poor if, while looking straight ahead, you must move your arm forward more than 20� in order to see your hand. Ideally, you should see outstretched hand at 90�.