Juvenile glaucoma is an uncommon form of chronic open angle glaucoma that appears between 3 and 35 years of age. We reports in this study four cases; one of them had unilateral visual acuity reduced. The intraocular pressure is above to 30 mm Hg, and a myopia was associated to two cases. The insidious development of this pathology and the difficulty of its diagnosis among young people, often result in severe clinical manifestations, with high visual field defects, and important optic disc cuppings.