Search:

www.opticianshandbook.com

Just found this gem from 20/20 Magazine earlier, pretty comprehensive in my opinion.

~Dustin

These are what I used to study for the test. There are also a series of flash cards and pretests on Quizlet.

Quizlet;
https://quizlet.com/2657691/abo-exam-pre-test-flash-cards/

Introduction...