Hearing Test - Take 2

This past Tuesday, I took Caleb and Piper back to our beloved ENT for Piper's post-op check up and Caleb's 6 month follow up for another hearing test.
Piper came back completely fine and looking good. Her tubes were still in place and in good position, just in time for ear infection season to start. We are all hoping and confident that she will be spared this year. We all feel like she should be, seeing as she has had countless ear and sinus infections in her short 3 years of life!
Caleb was scheduled to take another hearing test. You'll remember that 6 months ago, he failed a basic one at his pediatrician's office and then was found to have a documented hearing loss in his left ear. The theory was that if it stayed the same, then it was likely a variety of events that caused the loss. However, if it worsened over that time period, it would be attributed to a genetic, degenerative condition that would result in a hearing aide for Caleb.
Basically, the test results came back that his hearing loss is static, has not changed significantly. Our doctor just recommended that he sit in the front of the classroom at school (not a problem) and that we retest in 1 year.
I've asked a variety of times what could have caused this and no one really knows. What they do know is that Caleb was exposed to some treatments in the NICU that causes hearing loss, that he did have some middle ear fluid at various times his first few years of life, and that it could be totally spontaneous.
Caleb has always had trouble with hearing tests, failing the first time in the NICU, but they had always been able to retest and get a satisfactory reading. So, we don't really know where this is going or if it will ever get worse, so we will just watch and see. I have to say, that we are really in the best hands, if it were to get worse and he needed further treatment!