Kernrechtsfrage
Whether the revision proceedings showed a legally relevant deterioration of health justifying a full disability pension.
Extrahierter Entscheid
No legally relevant deterioration was proven; the existing three-quarter pension remained justified.
Extrahierte Begründung
The Federal Court upheld the cantonal court’s assessment that the medical record showed no objectively verifiable worsening, either somatic or psychiatric. The objections amounted to mere disagreement with evidence evaluation and did not establish manifest error or arbitrariness.