Do you have any more info on this? I have unilateral deafness and am constantly increasing the pressure of my good ear throughout the day by popping it. (The way I do this is sort by blowing a quick burst of air out my nose and clicking my ear at the same time.) I have long worried it may not be healthy but I have been doing it for years and have no recorded hearing loss from it, I continue to do it because the added volume it gives me is sometimes the difference between having to ask "what?" a third time in a row.
