Therapeutic effect of Nd ∶ YAG laser ablation in patients with vitreous floaters / 国际眼科杂志(Guoji Yanke Zazhi)

ABSTRACT

AIM:To observe the effect of Nd ∶ YAG laser ablation on vitreous floaters.METHODS:From October 2016 to January 2017,78 cases (84 eyes) with vitreous floaters treated with Nd ∶YAG laser ablation were involved.Chi-square test,Mann-Whitney Test,Kruskal-Wallis test and Spearman test were used to compare the therapeutic effect with different etiologies and grades.RESULTS:After two-week treatment,there were 66 eyes (79％) with a significant resolution,16 eyes (19％)with an improvement and 2 eyes (2％) invalid.The total effective rate was 98％.There was no significant difference between the therapeutic effect and times in different etiologies (H=3.842,P=0.146;x2 =0.070,P=0.966);the effective rate were 100％ in grade Ⅰ and Ⅱ,92％ in grade Ⅲ,83％ in grade Ⅳ,and the grade had a negative correlation with the therapeutic effect (rs =-0.027,P=0.013).There were 38 eyes (90％) in grade Ⅰ,21 eyes (88％) in grade Ⅱ,9 eyes (75％) in grade Ⅲ,and 2 eyes (33％) in grade Ⅳ needed once treatment.There was significant difference between different grades and treatment times (U=2.580,P=0.010).CONCLUSION:Nd ∶YAG laser ablation is a simple and convenient operation for vitreous floaters,and could improve the symptom of vitreous floater rapidly.