When I was in a similar situation a few years ago, I contacted the company occupational services nurse (through my manager) to try and work out ADA mandated adjustments to my work situation that would help me with my decreased ability to be productive. This was fruitless at the time but when it came time for me to apply for disability benefits with help from my neurologist, the input and understanding of the company nurse was very important in my receiving company sponsored long-term disability benefits.
Every situation is different, no doubt, but if your husband's job ratings are going down because of his inability to produce at his previous level, a company layoff my be coming at some point.
If this were to happen, it would help to have on his record that he was aware of this situation and had tried to identify adjustments that would help maintain his productivity.
CCSVI Procedure 9/16/2009 at Stanford
Stent in left and right IJVs
Copaxone and Ampyra user
Botox Bladder Injections