This month, Jackie Garlich, OD, FAAO, and Leslie O’Dell, OD, FAAO, dedicate the episode to the fairly common, yet sometimes elusive condition, nocturnal lagophthalmos, which clinicians encounter in their patients with dry eye. They pick the brain of Douglas K. Devries, OD, who talks about how he identifies patients with the condition, testing he uses, treatment options, and potential pitfalls associated with disease management.