Just ask the retina specialist very direct questions. Why is his vision so poor? Does he consider the eye to be legally blind? Is there a chance that he just needs a new pair of glasses from a big refractive change? Sounds like you need some clarification about the prognosis first.
HV
He failed because he couldn't even read the HUGE E on the first line of the eye chart. He does have what the doctor called a VERY small cataract but that should not prevent him from seeing at all out of that eye. I realize cataracts can limit vision but generally you have some limited sight.
I am just severely frustrated since his doctor kept telling him everything was good/perfect, etc. and we're four months out and he can't see.
Depends why he failed the test. Go see another ophthalmologist who can check and see whether he's developed a cataract, a need for a new pair of glasses, etc. If the problem is stemming from the retina, you should be able to ask the retina specialist what is going on and if the vision can be improved. In some states, even after failing the test, they will take a doctor's examination and recommendations into account prior to making any drastic decisions.
HV