Fig. 2: Representative images of optic nerve subarachnoid space area between 3 and 5 mm posterior to the optic disc (white shaded area) variations during the 90-day head down tilt bed rest and on recovery day 180. | npj Microgravity

Fig. 2: Representative images of optic nerve subarachnoid space area between 3 and 5 mm posterior to the optic disc (white shaded area) variations during the 90-day head down tilt bed rest and on recovery day 180.

From: Quantitative ultrasound image assessment of the optic nerve subarachnoid space during 90-day head-down tilt bed rest

Fig. 2

ONSSA distensions were showed on HDT30d (a, e), HDT60d (b, f), HDT90d (c, g), compared with R + 180d (d, h). The top and bottom lines indicated ONSSA in the right and left eye, respectively. HDT head down tilt bed rest, R recovery time.

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