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Deana Choi, Martha Kim, Karine Bojikian, Mark Slabaugh, Philip Chen; Comparison of Optic Nerve Head Parameters in Myopic and Nonmyopic Glaucoma Eyes. Invest. Ophthalmol. Vis. Sci. 2013;54(15):91. doi: https://doi.org/.
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© ARVO (1962-2015); The Authors (2016-present)
To compare optic nerve head parameters in myopic and nonmyopic glaucoma eyes using enhanced depth imaging spectral-domain optical coherence tomography (EDI SD-OCT) and Heidelberg Retina Tomography (HRT).
Optic disc images of 103 glaucoma patients were obtained using EDI SD-OCT and HRT. Axial length and central corneal thickness (CCT) were measured. Patients were divided into myopic glaucoma group (axial length more than 24.35 mm; n=52) and nonmyopic glaucoma group (axial length less than 24.35 mm; n=51). Lamina cribrosa thickness and depth, measured with EDI SD-OCT images on Heidelberg Eye Explorer software, were compared between groups. Areas of the optic disc and the cup, cup depth, area and volume of the rims, cup-to-disc area ratio and height variation contour were also compared between groups.
Male gender was more frequent in myopic glaucoma group (P < 0.001). Glaucoma type showed no difference between two groups (P = 0.677). There was no statistical difference in any parameters related to optic nerve head morphology. The depth and thickness of the lamina cribrosa were not different between myopic and nonmyopic glaucoma groups (P = 0.536 and P = 0.672, respectively). The CCT of myopic glaucoma group was significantly thinner than that of nonmyopic glaucoma group (P = 0.011).
Optic nerve head parameters measured using EDI SD-OCT show no significant difference between myopic and nonmyopic glaucoma patients.
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