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Retinal microstructures are altered in patients with idiopathic infantile nystagmus

 Jinu Han  ;  Taekjune Lee  ;  Jong Bok Lee  ;  Sueng-Han Han 
 Graefes Archive for Clinical and Experimental Ophthalmology, Vol.255(8) : 1661-1668, 2017 
Journal Title
 Graefes Archive for Clinical and Experimental Ophthalmology 
Issue Date
Adolescent ; Adult ; Case-Control Studies ; Child ; Child, Preschool ; Female ; Follow-Up Studies ; Genetic Diseases, X-Linked/diagnosis* ; Humans ; Male ; Nerve Fibers/pathology* ; Nystagmus, Congenital/diagnosis* ; Retinal Ganglion Cells/pathology* ; Retrospective Studies ; Tomography, Optical Coherence/methods* ; Visual Acuity* ; Visual Fields ; Young Adult
Infantile nystagmus ; Optical coherence tomography ; Retinal layer thickness ; Visual acuity
PURPOSE: To compare segmented retinal layer thicknesses between patients with idiopathic infantile nystagmus (IIN) and controls. METHODS: This retrospective case-control study included 66 patients with IIN and 66 age-matched controls. The retinal layers were examined using spectral domain optical coherence tomography with autosegmentation. Central foveal thickness (CFT), outer nuclear layer (ONL), and outer segment length (OSL) thickness were measured at the fovea center. Mean values for retinal nerve fiber layer, ganglion cell inner plexiform layer (GCIPL), inner nuclear layer, outer plexiform-outer nuclear layer (OPNL) thicknesses were calculated at two measurement points (nasal and temporal hump points at the macula area). RESULTS: There were no significant between-group differences in age, gender, or refraction error. The CFT was thicker in the IIN group compared with the control group (225.0 μm vs. 217.8 μm, P = 0.017) and OSL was shorter in IIN than in controls (40.0 μm vs. 43.7 μm., P < 0.001). The ONL thickness at the central fovea was not statistically different between the two groups. At the nasal and temporal position where the ganglion cell density was thickest, the GCIPL thickness was thinner in the IIN group compared to the controls (99.5 μm vs. 102.8 μm, P = 0.010). The GCIPL thickness was negatively correlated with logMAR visual acuity (Spearman's rho = -0.502, P < 0.001). CONCLUSIONS: The foveal pit was shallower, OSL was shorter, and the GCIPL thicknesses at macular humps were decreased in the patients with IIN compared with that of controls. The faulty development of the macula may be related to unknown pathophysiologic mechanism during fovea maturation in IIN or continuous eye movement itself interrupt fovea development.
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1. College of Medicine (의과대학) > Dept. of Ophthalmology (안과학교실) > 1. Journal Papers
Yonsei Authors
Lee, Jong Bok(이종복)
Lee, Taek June(이택준)
Han, Seung Han(한승한) ORCID logo https://orcid.org/0000-0001-8972-4790
Han, Jinu(한진우) ORCID logo https://orcid.org/0000-0002-8607-6625
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