A manager can file on behalf of the employee if the manager is aware that the time away from work is due to a medical reason and the employee has not filed on their own.

mySedgwick DS LV Manager Dashboard reference guide

How to request a Leave of Absence: 

Call:  1-866-431-8484 (Prompt:  1,2,1 for U.S. ;  Prompt:  1,2,2 for Canada)
or
Login: My Personal Desk -> select the My Leave icon

Leave type and leave approvals will be managed by third-party group Sedgwick in coordination with the EssilorLuxottica Benefits Department.