Optical coherence tomography showing thinning of the retinal nerve fibre layer (RNFL) 1 month postquinine overdose.  OU, oculus uterque (both eyes); OD,

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OCT= Optical Coherence Tomography
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Optical coherence tomography showing thinning of the retinal nerve fibre layer (RNFL) 1 month postquinine overdose.  OU, oculus uterque (both eyes); OD,
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Optical coherence tomography showing thinning of the retinal nerve fibre layer (RNFL) 1 month postquinine overdose.  OU, oculus uterque (both eyes); OD, oculus dexter (right eye); OS, oculus sinister (left eye). Optical coherence tomography showing thinning of the retinal nerve fibre layer (RNFL) 1 month postquinine overdose.  OU, oculus uterque (both eyes); OD, oculus dexter (right eye); OS, oculus sinister (left eye). Hildegard Nikki Hall, and Andrew J Tatham Pract Neurol doi:10.1136/practneurol-2017-001610 ©2017 by BMJ Publishing Group Ltd