Central nystagmus (involuntary eye movement)

Because there is only one rating level, the key question is whether central nystagmus is present and service-connected, not how severe it is. Medical records that document a diagnosis of central nystagmus from an eye doctor or neurologist are central to this. A VA or private examination that confirms involuntary eye movement and identifies it as central in origin supports the diagnosis. Imaging or specialist notes that distinguish central nystagmus from other types of nystagmus can also be helpful. Statements from you or people who know you describing how the eye movement affects your vision, balance, or daily activities may support the overall claim, though the rating itself does not vary with severity under this diagnostic code.