Evaluation of the risk factors in probing of lacrimal passage for neonatal dacryocystitis

Objective To evaluate the risk facors in probing of lacrimal passage for neonatal dacryocystitis.Methods A retrospective study was done to analyze different operations,number of times and timing of operation in probing of lacrimal passage in the past ten years.The relationship between the factors described above and the incidence of complications was discussed.Results In 3163 eyes of 2771 cases,3101 eyes of 2715 cases were cured,the success rate was 98.04％.There were 36 eyes of 36 cases complicated with false passage or laceration of inferior lacrimal punctum.The incidence of complication was 1.14％.The patients treated with probing by lacrimal duct flushing had a lower frequence of complication than the patients treated by probing without duct flushing.The difference was statistically significant.The incidences of complications with once probing were lower than those with twice probing.Compared with the patients under six months of age,the patients more than six months had a higher complicaton rate.The difference had a statistical significance.Conclusion Probing of lacrimal passsage has high success rate for neonatal dacryocystitis.Strict operating procedures can avoid the risk factors and reduce or eliminate the complication. Key words: Infant ;  Dacryocystitis ;  Probing, lacrimal passage ;  Complication