Fig. 1: Optic Nerve sheath complex variation in volunteers during 30, 60, 90 days of the head down tilt bed rest and 2, 7, 14, 30, 90, 180 days of recovery. | npj Microgravity

Fig. 1: Optic Nerve sheath complex variation in volunteers during 30, 60, 90 days of the head down tilt bed rest and 2, 7, 14, 30, 90, 180 days of recovery.

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

Fig. 1

Error bars represent the 95% confidence interval of the mean. The “*” and “#” represent ONSD (a), OND (b), ONSSW (c) at 3 mm and 5 mm posterior to the optic disc, respectively, which significantly increased in comparison to the values on day 180 of the recovery time (R + 180). The “&” indicates ONSSA (d) between 3 to 5 mm posterior to the optic disc significantly increased compared with that on R + 180. ONSD optic nerve sheath diameter, OND optic nerve diameter, ONSSW the width of the optic nerve subarachnoid space, ONSSA the transversal area of the optic nerve subarachnoid space.

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