I am an engineer, and Todd is a scientists. Tragically, you will find that optometrists never take science seriously. Here is the science and statistics - that confirm why Todd was, and is successful. Success can only come from an educated parent.https://www.youtube.com/watch?v=qJQN_FSahAo&t=19s
For me, I no alternative. If you are wise, and motivated, and will work to pass the DMV, then success is possible.
Personally - I will never trust an OD measurement.
I do it myself.