It's important to remember that if you don't declare, (I'm not agreeing either way) you can't whinge if they don't make reasonable adjustments. In my case, I have no choice but to declare.
I was always told that when declaring, don't do so in a negative way. So, say something like "this helps..." I was sometimes finding that whilst at uni, I was having to educate them on what my needs were and was sometimes having to offer some alternatives. (it was something to do with coloured paper, I think)