At an assembly addressing education, HaGaon HaRav Gershon Edelstein Shlita addressed bochurim who require medical treatment. The Rosh Yeshiva of Ponavezh said that he feels it would be better having those treatments during the zman, and not during the bein hazmanim time, as many might have thought to be the case.
The Rosh Yeshiva explained that during bein hazmanim, less Torah is being learned, and therefore, the Torah being studied has more importance and it should not be stopped. Therefore, he feels one should have the medical procedure done after returning to the zman, when there is far more limud Torah.
While it was not stated specifically, it appears this psak does not apply to a bochur who is not spending his time learning during bein hazmanim.
(YWN Israel Desk – Jerusalem)