Evidence-based practices matter in helping to establish which services are of high value and which ones are of low value, says Lori Grover, OD, PhD, FAAO. Dr. Grover serves on the board of trustees for the American Optometric Association (AOA) and is the author of several AOA evidence-based clinical practice guidelines. ODs, she says, need to help establish that the work they do meets these high-value levels.