Kernrechtsfrage
Whether the insured person's health condition had materially changed since the 2014 reduction decision so as to justify an increase of the pension.
Extrahierter Entscheid
No materially relevant change was proven; the health situation remained essentially unchanged.
Extrahierte Begründung
The court relied on the extensive medical record and found no new work-relevant diagnosis or significant worsening. Vision, pain complaints, and specialist findings had not materially changed; further investigations were unnecessary.