International Ophthalmology

, Volume 39, Issue 10, pp 2335–2340 | Cite as

One-month IOP in mitomycin C-augmented trabeculectomy can predict long-term IOP control in chronic primary angle-closure glaucoma

  • Chengguo Zuo
  • Shufen Lin
  • Keling Wu
  • Ruowen Gong
  • Yafen Liu
  • Mingkai LinEmail author
  • Jian Ge
Original Paper



To investigate the predictors of long-term intraocular pressure (IOP) in chronic primary angle-closure glaucoma (CPACG) treated with primary trabeculectomy.


This study systematically reviewed cases of CPACG treated with primary trabeculectomy. The scleral flaps in all cases were sutured with two stitches in situ and two releasable sutures to ensure watertight under normal IOP conditions during surgery. Mitomycin C was used in all eyes. All patients were followed for 2 years. Digital massage of the bulbus and removal of the releasable suture were performed according to the IOP and shape of the filtering bleb. Demographic data and clinical outcomes were recorded. Factors predicting long-term IOP were identified.


A total of 72 patients (88 eyes) with a mean age of 58.51 ± 10.60 years were included in this study. The complete success rate was 89.77% after 2 years. The IOP began to stabilize after 7 days and reached its lowest point at the 1-month follow-up. The preoperative and early postoperative high or low IOP does not affect long-term effects (P > 0.05). There was a positive correlation between postoperative IOP at the 1-month and 2-year follow-ups (r = 0.64, P < 0.001).


In CPACG patients undergoing primary trabeculectomy, scleral flaps sutured watertightly with two stitches in situ and two releasable sutures under normal IOP conditions can ensure controllable, effective and safe treatment of CPACG. The preoperative and early postoperative high or low IOP does not affect long-term effects. One-month postoperative IOP can be used as a predictor of long-term IOP control.


Trabeculectomy Intraocular pressure Chronic primary angle-closure glaucoma Predictor 


Compliance with ethical standards


This study was funded by the National Natural Science Foundation of China (81570846).

Conflict of interest

The authors declare that there is no conflict of interest regarding the publication of this paper.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.


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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  • Chengguo Zuo
    • 1
  • Shufen Lin
    • 1
  • Keling Wu
    • 1
  • Ruowen Gong
    • 1
  • Yafen Liu
    • 1
  • Mingkai Lin
    • 1
    Email author
  • Jian Ge
    • 1
  1. 1.State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic CenterSun Yat-sen UniversityGuangzhouChina

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