ABSTRACT
OBJECTIVE:To provide recommendation for the clinic on the optimal application concentration of potassium permanganate collyria.METHODS:3different concentrations of potassium permanganate collyria were prepared,the local ir-ritation of2of which on eyes of115conjunctivitis cases receiving conjunctival sac irrigation and the effects of the3different concentrations of potassium permanganate collyria on the comfort degree,corneal epithelium and bacterial colonies before and after eye irrigation of18pairs of oculus normalis receiving conjunctival sac irrigation were observed.RESULTS:Of the total115conjunctivitis cases,98(about85%)complained to have severe irritation;8cases(about7%)felt unbearable because of the strong irritation.Degree of comfort decreased with the elevation of concentration of collyria,while failed to have any effect on corneal epithelium and the numbers of bacterial colonies before and after irrigation.CONCLUSION:The recommended concentration of100ml∶1.5mg of potassium permanganate collyria for the irrigation of conjunctival sac in the clinic.