Due to this appointment, he had more chances to see the important persons from the shogunate and various domains, and broadened his activity scope, however unfortunately he lost eyesight due to an eye disease.
これにより覚馬は幕府や諸藩の名士等と交わる機会が増え、活動範囲を広げるが、不幸にも眼病を患い失明する。