The 'Ring of Confidence'-- an indicator of optimal anaesthesia following sub-Tenon's block.
Tunstill
S A
SA
Stoneham
J
J
D000772:Anesthesia, Local / Q000379:methods*; D006801:Humans; D017496:Hypopigmentation / Q000209:etiology; D013508:Ophthalmologic Surgical Procedures