Key legal question
Whether the insured person's health condition had materially changed since the 2014 reduction decision so as to justify an increase of the pension.
Extracted holding
No materially relevant change was proven; the health situation remained essentially unchanged.
Extracted reasoning
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.