Would writing to IRCC solve their depression?Really?
Or you could ignore that possibility, except to point out to IRCC that any non-flying alternatives would take tremendously long and be insanely expensive (just the part above - Turkey to Italy - is 24 days and pricing starts at ~$27k Canadian, out of reach of practical specialized opthalmological care) and therefore, for all intents and purposes, is NOT a practical solution and please issue me a PRTD so that I can return later.
And when would the doctor allow them to fly? What date would you suggest?
There's cheaper options. Like I said, if they can travel by land/sea this March/April to Rome before that Princess cruise sails to USA. That's starts from US4000 (inside).