The challenge of measuring the optic nerve sheath: a literature review
DOI:
https://doi.org/10.54143/jbmede.v2i4.99Keywords:
Optic nerve, Intracranial hypertension, UltrasonicsAbstract
Intracranial hypertension is related to higher mortality rates and its correct identification can determine prognosis. Optic nerve sheath measurement with ultrasound is used in the early management of this condition, but there are differences in the literature regarding its standardization. We observe that the ranges used as the cutoff point for optic nerve sheath dilation are heterogeneous according to the pathology, patient characteristics, and time of measurement. Through this literature review, we have observed that many false results can be obtained by different measures, with optic nerve ultrasound being a tool to be used by experienced professionals to ensure better accuracy of the method and greater reliability of empirical therapies based on its measurement.
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