Reading in dim light can put a strain on my eyes. . . When viewing the TV, I should sit a distance equal to twice the width of the screen. . . A lack of vitamin A in my diet can cause reduced night vision. . . Dilation of the pupils allows my doctor to see a better view of the inside of my eyes. . . The best color for sunglasses is blue. . .
Tears contain substances that slow down bacterial growth. . .
My eyelids work much like a car's windshield wipers. . . Sunglasses will allow me to look directly at the sun. . . Many prescriptions for eyeglasses are identical. . . Smoking can effect my vision. . . Air pollution affects only my lungs and breathing. . .