In "Bokoku no Shukuzu" (The Epitome of the Perishing Nation) (1902) compiled by Gisuke SATO, Kikutei TAGUCHI refered to a doctor's story; the doctor had been working at a clinic for the victims of the mining pollution in Ebise Village, and although he had not taken statistics because he was very busy, he treated over 2,300 patients in a month and a half of them suffered from eye diseases, and he estimated they were caused by some qualities of the lands.
田口掬汀は、海老瀬村の鉱毒被害者向けの診療所の医師に聞いた話として、忙しくて統計はとっていないが、ひと月に2300名を越える患者を診断し、うち半数が眼病であったが、これは地質が及ぼす結果だろうとこの医師は推測していることを佐藤儀助編『亡国の縮図』（1902年）で紹介している。