Consumer Reports (Jan 2018) did not have a high opinion of dry eye medications, https://www.consumerreports.org/vision-eye-care/dry-eye-symp...

"However, both drugs are expensive and can cause side effects that can worsen eye irritation and discomfort—Restasis in up to 17 percent of people and Xiidra in up to 25 percent of people. "Judging from the clinical trials data, the benefits of those two drugs are not that much more than the risk of adverse effects,” says Marvin M. Lipman, M.D., Consumer Reports’ chief medical adviser. “Their use should be relegated to a last-ditch measure, when all else has failed.”

Yawning can stimulate tear production: https://iristech.co/yawning/