Absence of the OPTN mutation in a patient with ALS and familial primary open angle glaucoma.

The optineurin (OPTN) gene, known to be implicated in primary open-angle glaucoma (POAG), is the more recent genetic factor linked to ALS. We report the case of a 75year-old man who developed ALS and whose medical history was dominated by a familial POAG. The absence of OPTN gene mutation in a patient who suffered from two conditions linked to mutations of this gene does not support involvement of OPTN in ALS.