June 2015
Volume 56, Issue 7
Free
ARVO Annual Meeting Abstract  |   June 2015
Visual Impairment after Trabeculectomy with Adjunctive Mitomycin C and Its Risk Factors among Japanese POAG patients
Author Affiliations & Notes
  • Kazuyoshi Kitamura
    Ophthalmology, University of Yamanashi, Chuo, Japan
  • Kenji Kashiwagi
    Ophthalmology, University of Yamanashi, Chuo, Japan
  • Fumihiko Mabuchi
    Ophthalmology, University of Yamanashi, Chuo, Japan
  • Tatsuya Chiba
    Ophthalmology, University of Yamanashi, Chuo, Japan
  • Satoshi Kogure
    Ophthalmology, University of Yamanashi, Chuo, Japan
  • Tetsuya Yamamoto
    Ophthalmology, Gifu Univ Graduate Sch of Med, Gifu city, Japan
  • Yasuaki Kuwayama
    Fukushima Eye Clinic, Osaka city, Japan
  • Makoto Araie
    Kanto Central Hospitals, Mutual Aid Assoc of Public Sch Teachers, Setagaya-Ku, Japan
  • Footnotes
    Commercial Relationships Kazuyoshi Kitamura, None; Kenji Kashiwagi, None; Fumihiko Mabuchi, None; Tatsuya Chiba, None; Satoshi Kogure, None; Tetsuya Yamamoto, None; Yasuaki Kuwayama, None; Makoto Araie, None
  • Footnotes
    Support None
Investigative Ophthalmology & Visual Science June 2015, Vol.56, 2716. doi:
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      Kazuyoshi Kitamura, Kenji Kashiwagi, Fumihiko Mabuchi, Tatsuya Chiba, Satoshi Kogure, Tetsuya Yamamoto, Yasuaki Kuwayama, Makoto Araie; Visual Impairment after Trabeculectomy with Adjunctive Mitomycin C and Its Risk Factors among Japanese POAG patients. Invest. Ophthalmol. Vis. Sci. 2015;56(7 ):2716.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract
 
Purpose
 

To report the 5-year incidence of visual impairment after mitomycin C-augmented trabeculectomy and the risk factors of visual impairment among primary open angle glaucoma (POAG) patients, as determined from the Collaborative Bleb-Related Infection Incidence and Treatment Study (CBIITS).

 
Methods
 

Among POAG patients registered to the CBIITS, patients with eyes meeting the following qualifications were excluded from the study: those having an onset and/or deterioration of any diseases that resulted in visual impairment with no relation to trabeculectomy during the follow-up period; eyes with < 20/60 at the entry. The definitions of visual impairment were <3/60 as legal blindness, ≥ 3/60 and < 20/60 as low vision, and ≥0.2 log MAR deterioration during the period as visual acuity loss.

 
Results
 

A total of 407 eyes of 407 POAG patients including 237 males and 170 females were analyzed. The demographics of enrolled patients were mean age of 63.3±11.6 years, mean refractive error of -2.85±3.57D, and mean Humphrey Field Analyzer mean deviation (HFA-MD) of -17.9±7.4 dB. During the study period, visual acuity significantly deteriorated from 0.0457±0.153 to 0.187±0.421 (P<0.0001). The incidence of blindness, low vision, and visual acuity loss were 3.2%, 10.8%, and 25.6%, respectively. Multivariate logistic regression analysis revealed that pre-operative visual acuity, HFA-MD, and intraoperative complication are the risk factors for visual impairment.

 
Conclusions
 

The incidence of visual impairment and its risk factors after mitomycin C-augmented trabeculectomy among POAG patients are revealed. Ophthalmologists should recognize these results before using mitomycin C-augmented trabeculectomy.

 
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