Novel area-based optic nerve head parameter to distinguish glaucoma from non-glaucomatous retinal nerve fiber layer defect in branch retinal vein occlusion. 2022

Yerim An, and Sung Pyo Park, and Kyeong Ik Na
Department of Ophthalmology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, 150, Seongan-ro, Gangdong-gu, Seoul, 05355, South Korea.

OBJECTIVE The purpose of this study was to assess the diagnostic ability of the new area-based parameter retinal nerve fiber layer to disc ratio (RDR) for discriminating between glaucoma and non-glaucomatous retinal nerve fiber layer defects (RNFLDs). METHODS This retrospective cross-sectional study included 42 branch retinal vein occlusion (BRVO) eyes with RNFLD, 42 open-angle glaucoma (OAG) eyes, and 42 healthy control eyes that were matched with optic disc size. The RDR, peripapillary retinal nerve fiber layer thickness (pRNFLT), Bruch's membrane opening-minimum rim width (BMO-MRW), and Bruch's membrane opening-minimum rim area (BMO-MRA) were analyzed. The areas under the receiver operating characteristic curves (AUCs) were calculated for each parameter. RESULTS The OAG and BRVO groups had similar global pRNFLT (87.57 ± 7.07 µm and 89.71 ± 12.21 µm, respectively), but these were thinner than those of the healthy group (102.71 ± 8.95 µm, p < 0.001 and p < 0.001, respectively). RDR was lowest in the BRVO group (0.755 ± 0.121, p < 0.001) and highest in the OAG group (1.111 ± 0.145, p < 0.001). Global BMO-MRW was significantly lower in the OAG group (194.36 ± 23.09 µm) than in the BRVO (269.69 ± 42.77 µm, p < 0.001) and healthy (273.48 ± 30.92 µm, p < 0.001) groups. Total BMO-MRA of the OAG group (0.88 ± 0.12 mm2) was significantly lower than that of the BRVO (1.32 ± 0.19 mm2, p < 0.001) and healthy (1.30 ± 0.21 mm2, p < 0.001) groups. AUC for discriminating between the OAG and BRVO was 0.986 for total BMO-MRA and 0.970 for RDR (p = 0.192). CONCLUSIONS In clinical practice, RDR may perform well as a parameter to distinguish between glaucoma and non-glaucomatous RNFLD.

UI MeSH Term Description Entries
D007429 Intraocular Pressure The pressure of the fluids in the eye. Ocular Tension,Intraocular Pressures,Ocular Tensions,Pressure, Intraocular,Pressures, Intraocular,Tension, Ocular,Tensions, Ocular
D009412 Nerve Fibers Slender processes of NEURONS, including the AXONS and their glial envelopes (MYELIN SHEATH). Nerve fibers conduct nerve impulses to and from the CENTRAL NERVOUS SYSTEM. Cerebellar Mossy Fibers,Mossy Fibers, Cerebellar,Cerebellar Mossy Fiber,Mossy Fiber, Cerebellar,Nerve Fiber
D009898 Optic Disk The portion of the optic nerve seen in the fundus with the ophthalmoscope. It is formed by the meeting of all the retinal ganglion cell axons as they enter the optic nerve. Blind Spot,Optic Disc,Optic Nerve Head,Optic Papilla,Blind Spots,Disc, Optic,Disk, Optic,Head, Optic Nerve,Nerve Head, Optic,Optic Discs,Optic Disks,Optic Nerve Heads,Optic Papillas,Papilla, Optic,Papillas, Optic,Spot, Blind
D003430 Cross-Sectional Studies Studies in which the presence or absence of disease or other health-related variables are determined in each member of the study population or in a representative sample at one particular time. This contrasts with LONGITUDINAL STUDIES which are followed over a period of time. Disease Frequency Surveys,Prevalence Studies,Analysis, Cross-Sectional,Cross Sectional Analysis,Cross-Sectional Survey,Surveys, Disease Frequency,Analyses, Cross Sectional,Analyses, Cross-Sectional,Analysis, Cross Sectional,Cross Sectional Analyses,Cross Sectional Studies,Cross Sectional Survey,Cross-Sectional Analyses,Cross-Sectional Analysis,Cross-Sectional Study,Cross-Sectional Surveys,Disease Frequency Survey,Prevalence Study,Studies, Cross-Sectional,Studies, Prevalence,Study, Cross-Sectional,Study, Prevalence,Survey, Cross-Sectional,Survey, Disease Frequency,Surveys, Cross-Sectional
D005901 Glaucoma An ocular disease, occurring in many forms, having as its primary characteristics an unstable or a sustained increase in the intraocular pressure which the eye cannot withstand without damage to its structure or impairment of its function. The consequences of the increased pressure may be manifested in a variety of symptoms, depending upon type and severity, such as excavation of the optic disk, hardness of the eyeball, corneal anesthesia, reduced visual acuity, seeing of colored halos around lights, disturbed dark adaptation, visual field defects, and headaches. (Dictionary of Visual Science, 4th ed) Glaucomas
D005902 Glaucoma, Open-Angle Glaucoma in which the angle of the anterior chamber is open and the trabecular meshwork does not encroach on the base of the iris. Glaucoma Simplex,Glaucoma, Pigmentary,Glaucoma, Simple,Open-Angle Glaucoma,Chronic Primary Open Angle Glaucoma,Glaucoma, Compensated,Glaucoma, Compensative,Glaucoma, Open Angle,Glaucoma, Primary Open Angle,Glaucoma, Secondary Open Angle,Primary Open Angle Glaucoma,Secondary Open Angle Glaucoma,Compensated Glaucoma,Compensative Glaucoma,Open Angle Glaucoma,Open Angle Glaucomas,Open-Angle Glaucomas,Pigmentary Glaucoma,Simple Glaucoma,Simplex, Glaucoma,Simplices, Glaucoma
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012165 Retinal Ganglion Cells Neurons of the innermost layer of the retina, the internal plexiform layer. They are of variable sizes and shapes, and their axons project via the OPTIC NERVE to the brain. A small subset of these cells act as photoreceptors with projections to the SUPRACHIASMATIC NUCLEUS, the center for regulating CIRCADIAN RHYTHM. Cell, Retinal Ganglion,Cells, Retinal Ganglion,Ganglion Cell, Retinal,Ganglion Cells, Retinal,Retinal Ganglion Cell
D012170 Retinal Vein Occlusion Blockage of the RETINAL VEIN. Those at high risk for this condition include patients with HYPERTENSION; DIABETES MELLITUS; ATHEROSCLEROSIS; and other CARDIOVASCULAR DISEASES. Branch Retinal Vein Occlusion,Branch Vein Occlusion,Central Retinal Vein Occlusion,Retinal Branch Vein Occlusion,Thrombosis, Retinal Vein,Retinal Vein Thrombosis,Branch Vein Occlusions,Occlusion, Branch Vein,Occlusion, Retinal Vein,Retinal Vein Occlusions,Retinal Vein Thromboses,Vein Occlusion, Branch,Vein Occlusion, Retinal,Vein Thrombosis, Retinal
D012189 Retrospective Studies Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons. Retrospective Study,Studies, Retrospective,Study, Retrospective

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