In 1798, at age 65, he went blind in his right eye as well, but Ryojun TANIKAWA, an acupuncturist living in Osaka, treated him and his eye got a little bit better.
1798年（寛政10年）65歳、右目も失明するが、大阪の鍼医、谷川良順の治療によりやや回復した。