<p>I have something of the same dilemma (incidentally, I just had a long discussion about this with someone today)</p>
<p>For me, I have a disability and chronic illness that are visible but I'm not in a wheelchair. Being around and aware of people who have cancer, are quadriplegic, blind, etc., most of the time I think I got off lucky and get annoyed at people who go on about the whole "overcoming obstacles" crap. I never know how to respond to the questions about "describing circumstances that have had an adverse affect on your academic record," etc. I have a 4.0, so obviously my "record" per se hasn't suffered--but, in retrospect, my academic experience certainly has. I've continued to do well for myself in school, activities, even (to my shock) athletics, but as someone put it I have "more to juggle" to accomplish that balance, much as I like to play that down. While my fourth grade teacher recommended that I just skip fifth grade entirely, the administration wanted to make me repeat a grade because my attendance record was bad (surgeries, doctors, illness, etc.) A lot of people assume I have mental retardation because I look a little bit like someone with Down Syndrome. Kids of course tease me outright, but that's not the problem, since if it wasn't about my disability it'd be that I'm short, or clumsy, or whatever--the problem comes when it's the "elephant in the room," and people make assumptions I can't correct because I don't know what they are.</p>
<p>So I'm probably going to redefine the "effect on academic record" sorts of questions to be "academic experience" and talk about that, because that's the elephant. On interviews I have to be especially careful about appearance and such (normally I really couldn't care less), to minimize the assumptions people might make based on my face. Since a lot of the interviewers are just alumni and not professional interviewers, I'm also kinda thinking of writing about it somewhere on the application as a small safeguard against any prejudices that might unconsciously slip into the interviewer's report, etc.</p>
<p>I probably won't be writing about it in my essays, but everyone's experience is different that way. If you have one moment or something you can really focus in on that relates to being in a wheelchair, by all means craft it into a kickass essay--the problem is mainly when you lose focus, because then the essay quickly morphs into a bland, general one about hardship. Don't fall into the typical overcoming obstacles trap, though I think from your posts you already are well aware of that one. The best kind of essay related to this would be, at least to my amateur mind, an anecdote that tells the reader something about you as a person, gives a glimpse into your daily experiences, without making your wheelchair and the obstacles you face because of it the focus. Start with what you want to convey about yourself, or how best to show who you really are in a single essay, and if that includes talking about your experiences in a wheelchair, by all means do it.</p>
<p>Either way, explaining a little about how being in a wheelchair has affected you (academically, personally, whatever) somewhere on the app might be a good idea.</p>