Neeru Vallabh, PhD, discusses the burgeoning number of glaucoma cases worldwide and the push for earlier diagnosis through biomarkers. She highlights the need for predictive, preventive, and personalized medicine, potentially via metabolomics. Metabolomics, the analysis of metabolites, reflects physiological or pathological states and could provide new therapeutic targets. Techniques like mass spectrometry and nuclear magnetic resonance spectroscopy are used to study metabolomics. In glaucoma, metabolites like amino acids and lipids are altered, impacting mitochondrial function and retinal ganglion cells. Vallabh envisions applying metabolomics findings to clinical practice, aided by metabolite databases, to identify novel therapeutic targets.