"A long-term, high-fat diet may reduce the lacrimal gland’s tear secretion ability, which in turn could cause dry eye, a new study claims.
"Mice were given either a standard or high-fat diet for different durations over the period of one to four months. After one month, the study found those on the high-fat diet had decreased tear secretion. 
"Also of note: After four months on the high-fat diet, mice that were shifted to the standard diet for one month were able to recover from most pathologic changes. In addition, after feeding with fenofibrate, the tear production increased, inflammation was relieved and the oxidative stress level decreased.
"A long-term high-fat diet could result in aqueous tear secretion decrease, which may induce dry eye."