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KMID : 1813520200090020059
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Journal of the Korean Glaucoma Society
2020 Volume.9 No. 2 p.59 ~ p.63
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Excyclorotation Causing False Positive Errors of the Retinal Nerve Fiber Layer Deviation Map in the Optical Cohrerence Tomography
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Park Su-Hwan
Kim Su-Jin
Shin Jong-Hoon
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Abstract
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Measuring the retinal nerve fiber layer (RNFL) using spectral-domain optical coherence tomography (SD-OCT) has been the essential evaluation for detecting optic nerve disease. In spite of the technological development of SD-OCT, the deviation map which have provided the information as colorcode maps on abnormal RNFL thickness as “outside normal limits” or “borderline” according to an internal normative database has had the limitation to the high rate of false positive results for glaucoma detection. This error can cause unnecessary treatment in the subjects without optic nerve disorder. To better recognize the false positive pattern of SD-OCT in the patients with excyclorotation, we present 2 cases referred to Pusan National University Yansan Hospital for evaluation.
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KEYWORD
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Excyclorotation, Optical cohrerence tomography, Retinal nerve fiber layer
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