AsaTechmed Snellen Pocket Eye Chart Wall Chart for Visual Acuity with Red Plus Green Lines Pupil Gauge -12-

? SNELLEN POCKET EYE CHART ? » Non reflecting, matte finish professional handy pocket sized chart for measuring visual acuity at a distance » Features green and red color bars for an easy and helpful color vision testing » Washable + Portable Pocket Size - Great for Travel, Office, or Home use » Inches/centimeters ruler + Pupil Gauge Chart » Easy to hang on virtually any wall. ? HOW TO USE A SNELLEN EYE CHART 1. Place the chart on the wall 6 feet away to prepare to start this test without using your glasses or contacts. 2. Cover one eye with your hand to completely block the vision of the covered eye. (Do not apply pressure to the covered eye) 3. Identify a line on the chart that you can comfortably read. Read the letters on that line aloud. Have someone record your letters. 4. Continue trying to read the letters on each successively smaller line. Do not squint. 5. Switch to the other eye and repeat. 6. Record your visual acuity for each eye by noting the line for which you correctly identified: a) More than half the letters on that line, but not all of them. OR b) All of the letters on that line, plus a few letters (less than half) on the next line. 100% SATISFACTION GUARANTEED Being so sure about the quality of our inventory, we at Asatechmed offer you a 30 Day Money Back Warranty. No Questions Asked, No Strings Attached.