Optic nerve sheath diameter at high altitude: standardized measures in healthy volunteers

ConclusionsThe median ONSD and ONSD/ETD ratio in the city of Bogot á are similar to those described in other populations; however, approximately 10.8% of the healthy population may present higher values, which would limit the use of ONSD on its own for clinical decision-making, only repeated measurements with significant changes in the ONSD and ONSD/ETD or asymmet ries between the measurements of both eyes linked to clinical findings would allow the diagnosis of hICP.
Source: Critical Ultrasound Journal - Category: Radiology Source Type: research