Ogul Uner, MD, invites Ta Chen Peter Chang, MD, a pediatric glaucoma specialist, to review a case of a 9-month-old boy who presented with significant photophobia in both eyes. Examination showed IOP of 32 mm Hg in the right eye and 29 mm Hg in the left eye with moderate optic nerve cupping in both eyes. Dr. Chang shares what additional information he would look for to make a diagnosis of pediatric glaucoma. He also shares insights from the Childhood Glaucoma Research Network, a consortium of glaucoma specialists that has developed a consensus of diagnostic criteria.