Push the eyeball upward gently, then puncture perpendicularly 0.5-1.2 cun along the orbital margin slowly without movements of lifting, thrusting, twisting and rotating.
Ask the patient to close their eyes and look upwards. Use a finger to push the eyeball upwards and insert the needle, first slightly inferiorly, then perpendicularly, between the eyeball and the inferior wall of the orbit 0.5-1 cun.