jrosal01

I am a pre-school nurse, I use the McDowell screening kit. You pretty much stand 10 ft away and throw a red ball (different sizes are different values). If the student follows the ball with their eyes when you drop it, it means they can see at that acuity. Here is a link: http://www.wpspublish.com/store/p/2863/mcdowell-vision-screening-kit