Questione giuridica chiave
Whether the insured was entitled to a disability pension higher than 20% from 1 July 1998 because of tinnitus-related sleep disorders
Decisione estratta
The medical file was insufficient to determine the objectively usable residual work capacity; further medical and possibly vocational clarification was required before deciding the pension entitlement.
Motivazione estratta
The reported sleep limitations were too vague and inconsistent to support a definitive percentage. The court held that objective assessment of work capacity in sleep-disorder cases requires precise medical explanation of what work remains reasonably possible, and that this was missing.