[The epidemiology of glaucoma]. / Epidémiologie du glaucome.

The epidemiology of glaucoma studies the incidence and prevalence of the disease, searches for risk factors, evaluates screening procedures, and compares therapies. The epidemiology of glaucoma faces several problems: the diversity of glaucoma types, patient-dependent disease progression, and the cost of epidemiological studies. We detail the epidemiological data useful for the ophthalmologist's practice.

[Optic nerve sheath decompression in optic neuropathy complicating idiopathic intracranial hypertension: a new focus]. / Décompression intra-orbitaire du nerf optique par ouverture des méninges péri-optiques lors de neuropathies optiques compliquant une hypertension intracrânienne idiopathique.

Optic nerve sheath decompression is a surgical procedure only used in optic neuropathy complicating idiopathic intracranial hypertension. We describe this technique and compare it with the classic technique of cerebrospinal liquid derivation. Several points contrast optic nerve sheath decompression and cerebrospinal fluid derivation: there is no biomaterial, it is limited to the orbital area, and intracranial pressure remains unchanged. The complications are different, yet analysis of the literature shows the same efficacy in terms of visual function. We recommend a practical management of optic neuropathy complicating idiopathic intracranial hypertension, depending on the functional severity and the therapeutic efficacy. The surgical indication should only concern serious optic neuropathy not responding to medical therapy, with the choice of the surgical technique belonging to the surgeon.