Lamina Cribrosa and Choroid Features and Their Relationship to Stage of Pseudoexfoliation Glaucoma
Overview
Authors
Affiliations
Purpose: To better understand the relationship of lamina cribrosa (LC) and choroid features to the severity of pseudoexfoliation glaucoma (PXG).
Methods: In this cross-sectional study, 137 eyes of 122 subjects (47 eyes with moderate/advanced PXG [mean deviation (MD), -15.0 ± 7.7 dB], 34 eyes with mild PXG [MD, -2.7 ± 1.5 dB], 32 aged-matched pseudoexfoliation syndrome [PXS] eyes, and 24 aged-matched control eyes) were investigated. Optic discs, LC thickness, and anterior LC depth (ALD; midsuperior, center, and midinferior) as well as peripapillary choroidal thickness were determined. Linear mixed modeling was used to adjust for age, sex, and axial length.
Results: A progressive decrease in LC thickness was found when comparing controls (271.9 ± 61.3 μm), PXS (212.6 ± 51.5 μm), mild PXG (180.8 ± 24.6 μm), and moderate/advance PXG (138.9 ± 37.5 μm) (P < 0.001). ALD was greater (P < 0.001) in moderate/advance glaucoma (306.7 ± 105.3 μm) and mild PXG (209.5 ± 79.7 μm) compared with PXS (155 ± 86.7 μm) and healthy controls (149.2 ± 103 μm). Although eyes with moderate/advance PXG had the thinnest choroid (117.2 ± 36.6 μm), choroidal thickness was comparable in mild PXG, PXS, and controls (150.0 ± 46.1, 159.7 ± 65.5, and 157.5 ± 51.1 μm, respectively; P = 0.002). Worse MD was the only factor associated with thinner LC (β = 2.344, P < 0.001) and choroid (β = 1.717, P = 0.009 μm) in PXG eyes. Higher IOP (β = 4.305, P = 0.013) and worse MD (β = -6.390, P < 0.001) were associated with deeper ALD in PXG.
Conclusions: In pseudoexfoliation, LC thinning is an early sign, and there is progressive thinning with advancing glaucoma. Choroidal thinning is observable only with moderate/advanced glaucoma. In PXG eyes, LC thickness, depth, and peripapillary choroidal thickness are associated with glaucoma severity.
Kang E, Park J, Yoo C, Kim Y Sci Rep. 2024; 14(1):6.
PMID: 38168116 PMC: 10761949. DOI: 10.1038/s41598-023-49099-w.
Grytz R, El Hamdaoui M, Fuchs P, Fazio M, McNabb R, Kuo A Biomed Opt Express. 2022; 13(2):1070-1086.
PMID: 35284162 PMC: 8884212. DOI: 10.1364/BOE.447595.
Hepokur M, Elgin C, Gunes M, Sali F, Oguz H Int Ophthalmol. 2022; 42(6):1835-1847.
PMID: 34984628 DOI: 10.1007/s10792-021-02181-6.
Park H, Shin D, Jeon S, Kim Y, Jung Y, Kim E Sci Rep. 2021; 11(1):16697.
PMID: 34404847 PMC: 8371169. DOI: 10.1038/s41598-021-95984-7.
Sawada Y, Araie M, Shibata H, Iwase T Sci Rep. 2021; 11(1):4176.
PMID: 33603146 PMC: 7892818. DOI: 10.1038/s41598-021-83720-0.