How to Test Vision with an Iowa Driver's License
Hold the license 16 inches from the eyes
Use best correction: bifocals or reading glasses
Snellen Equivalents:
IOWA- 20/160
Name and Address - 20/50
Small serial number - 20/32
Developed by:
Brian R. Kirshling, OD
Erin M. Shriver, MD
Mark E. Wilkinson, OD
tests
