“Permission to appeal was granted to the Secretary of State by District Tribunal Judge Bird of the First-tier Tribunal on16 November 2016 . As described by Judge Bird, I think fairly, the ground of appeal is whether the effects of Meniere’s disease can fall to be taken into account under activity 8 in Schedule 2 to theEmployment and Support Allowance Regulations 2008 (“the ESA Regs”), and more particularly as a sensory impairment within descriptor 8b under that activity. Activity 8 is concerned with “Navigation and maintaining safety, using a guide dog or other aid if either or both are normally, or could reasonably be, used”