Bae HW, Seo SJ, Lee SY, Lee YH, Hong S, Seong GJ, Kim CY. Risk factors for visual field progression of normal-tension glaucoma in patients with myopia.
Can J Ophthalmol 2016;
52:107-113. [PMID:
28237136 DOI:
10.1016/j.jcjo.2016.08.011]
[Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 07/29/2016] [Accepted: 08/15/2016] [Indexed: 11/28/2022]
Abstract
OBJECTIVE
To identify risk factors for visual field progression of normal-tension glaucoma (NTG) in patients with myopia.
DESIGN
Longitudinal, observational study.
PARTICIPANTS
Fifty-one eyes of 51 NTG patients with myopia (less than -0.75D based on spherical equivalence) who had undergone visual field (VF) testing at least once per year for ≥6 years between November 2005 and December 2013.
METHODS
Progression was defined using event-based guided progression analysis. Risk factors were analyzed using the Cox proportional hazards model and further tested for independence in a multivariate model.
RESULTS
The mean observation period was 7.0 ± 1.3 years, and 16 of 51 subjects showed progression. In the univariate analysis, abnormal retinal nerve fibre layer (RNFL) colour codes (yellow or red sector) at the 11, 10, and 7 o'clock positions on optical coherence tomography showed significant associations with the VF progression (p = 0.03, 0.03, and 0.01, respectively). In the final multivariate models, the abnormal RNFL colour code of the 7 o'clock sector (inferotemporal sector) was the only significant risk factor for progression (hazard ratio = 4.07 and 4.37; 95% CI, 1.11-14.92 and 1.27-15.04; p = 0.03 and 0.02, respectively).
CONCLUSIONS
Inferotemporal RNFL thinning could be a risk factor for progression in NTG patients with myopia.
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