Using artificial tears was discouraged, but permitted during the review; contributors who had been practising lid hygiene previous to the research had been allowed to carry on; participants not practising lid hygiene before the study ended up encouraged, although not essential, to practice lid hygiene making use of heat saline https://centre-m-dical-d-ophtalmo20615.laowaiblog.com/18752212/yeux-secs-an-overview