Abstract
Purpose
To investigate the association between the laminar dot sign (LDS) and the deep optic nerve head (ONH) structure in eyes with primary-open-angle glaucoma (POAG).
Methods
Eighty-four eyes of 84 patients with POAG were prospectively included. All of the patients underwent stereo optic disc photography (SDP), red-free retinal nerve fibre layer (RNFL) photography, SS-OCT, and standard automated perimetry. By evaluating the SDP, patients were classified into laminar dot sign (LDS) and non-LDS groups. The deep structure of the ONH including the anterior prelaminar depth (APLD) and prelaminar tissue thickness (PTT) were quantitated using SS-OCT. Progression was assessed by structural or functional deterioration during the average 4.3 ± 1.2 years of follow-up.
Results
The LDS group had deeper APLD (405.47 ± 107.55 vs. 302.45 ± 149.51, P < 0.001) and thinner PTT (74.34 ± 24.46 vs. 137.29 ± 40.07, P = 0.001) relative to the non-LDS group. By multivariate analysis, thin PTT was significantly associated with the presence of LDS (odds ratio = 0.939, P < 0.001). Structural progression was detected in 45 eyes (84.9%) in the LDS group and 8 eyes (25.8%) in the non-LDS group. Functional progression was demonstrated in 29 eyes (34.5%) in the LDS group and 6 eyes (19.4%) in the non-LDS group. The eyes with LDS had a significantly higher risk of glaucoma progression (χ2 = 5.00, degree of freedom = 1, P = 0.033).
Conclusions
In eyes with POAG, the presence of LDS was associated with thinner prelaminar tissue and faster disease progression.
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Bak, E., Lee, W.J., Kim, JS. et al. Deep optic nerve head morphology and glaucoma progression in eyes with and without laminar dot sign: a longitudinal comparative study. Eye 35, 936–944 (2021). https://doi.org/10.1038/s41433-020-1001-2
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DOI: https://doi.org/10.1038/s41433-020-1001-2
