A quick test to demonstrate refractive problems. If a patient can see more clearly through the multiple-pinhole pattern of the Wertheim Vision Tester, then he/she would benefit from a more thorough vision test and prescription lenses.
A quick test to demonstrate refractive problems. If a patient can see more clearly through the multiple-pinhole pattern of the Wertheim Vision Tester, then he/she would benefit from a more thorough vision test and prescription lenses.