Table 1 Time points of IOP and ONSD measurements

T0

Patient awake in supine position before induction of anaesthesia

X

-

T1

20 min after induction of general anaesthesia in supine position

X

X

T2

After insufflation of the abdomen with CO₂ in supine position

X

X

T3

After 30 min in 45° Trendelenburg position with the abdomen still insufflated with CO₂

X

X

T4

Control of Santorini’s plexus in 45° Trendelenburg position with CO₂ still insufflated

X

X

T5

Anaesthetised before awakening in supine position

X

X