An estimated 50 million people in the United States suffer from allergies. What is the best way to identify ocular allergy in your practice? For 2016, NSI welcomes Andy Morgenstern, OD, to the panel, as he shares his diagnosis strategy. Andy says that allergy is not always simple to diagnose because patients could have more than one disease at a time, so it is important to perform a full eye examination before starting treatment. Walt says that proper diagnosis and identification comes down to asking your patients the right questions regarding how their eyes feel. He argues that following examination it is important to determine any potential underlying causes.