A recent study in the Journal of Attention Disorders details the development of a novel method to objectively measure the effects of stimulant medication on individuals with Attention-Deficit/Hyperactivity Disorder (ADHD) through the innovative use of eye-tracking technology. This new approach, dubbed the iFocus method, offers a promising tool for evaluating the efficacy of ADHD treatments in real-world settings, providing a significant leap towards personalized medicine in the management of ADHD.