Clinical effects of the in-situ microinvasive revision surgery on the fibrotic filtering bleb with the guidance of UBM / 眼科新进展

ABSTRACT

Objective To investigate the clinical effects of microinvasive revision surgery on the patients of the fibrotic filtering bleb with the guidance of ultrasound biomicroscopy (UBM).Methods A prospective,nonrandomized clinical controlled trial was conducted,which had 2 groups according to the results from UBM during the same period in our hospital,including the patients with the microinvasive revision surgery (28 patients of 28 eyes,group A) and the in-situ traditional revision surgery of larger incision (27 patients of 27 eyes,group B).The clinical data of the patients were collected and the main observation targets were the change of the postoperative visual acuity (VA),intraocular pressure (IOP),the operation success rate and the complications.Results There were no significant differences in the gender,age,glaucoma types,primary operation modes,postoperative follow-up time and preoperative VA (all P ＞0.05).The average duration of hospital stay,postoperative VA and the postoperative complications of group A were better than those of group B and the differences were statistically significant (all P ＜ 0.05).There was no significant difference in IOP at different time points between the two groups (all P ＞ 0.05).The operative successful rates of the two groups were 64.3％ and 66.6％,respectively(P ＞ 0.05).Conclusion The in-situ microinvasive revision surgery on the basis of the UBM examination is a good choice for patients with the fibrotic filtering bleb of the unlocked inner passageway in the filter aisle and a latent liquid dark cavity that is interlinked with the anterior chamber under the scleral flap or the liquid dark cavity of the capsule.