perrybo
One of the issues you will need to deal with is variability of the condition, can you show that you meet the majority of days criteria, you may be able to argue that the risk of an attack meets the requirement, see the section on Safety in the PIP Claim guide.
Sensory problems are a valid reason for scoring points in the Going Out activity, but you will need to explain how the problem prevents you navigating a route in some detail.
Gordon
Nothing on this board constitutes legal advice - always consult a professional about specific problems 
