Clinical investigation: Target intraocular pressure for stability of visual field loss progression in normal-tension glaucoma

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書誌事項

タイトル別名
  • Clinical investigation Target intraocular pressure for stability of visual field loss progression in normal tension glaucoma
公開日
2010
DOI
  • 10.1007/s10384-009-0779-z
公開者
[Tokyo] : [Springer Japan]

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説明

To determine the target intraocular pressure (IOP) level in normal-tension glaucoma (NTG) for visual field (VF) stability following trabeculectomy.Forty eyes of 40 patients who underwent trabeculectomy were enrolled in this study. Progression was determined by a decrease in the Advanced Glaucoma Intervention Study VF defect score of four or more points. The Kaplan-Meier life table method was employed to compare the postoperative VF stability with predetermined IOP levels.The mean postoperative follow-up period was 12 years. At the final visit, the IOP was reduced from 15.2 to 9.4 mmHg on average (P0.0001). Reductions in IOP of 20% from baseline were achieved in 70.0% of eyes. The cumulative probability of VF stability was 92.7% in patients having an IOP reduction of20%, whereas all patients in the poorly controlled IOP group showed progression (P0.0001). When IOP values of 9, 10, 11, and 12 mmHg were employed as the cutoff, the best VF prognosis was attained in eyes with a postoperative IOP of 10 mmHg.An IOP reduction of at least 20% from baseline or IOPor=10 mmHg is recommended as the target postoperative IOP in progressive NTG.

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