[Subtenon's infiltration anesthesia for intraocular surgery].
OBJECTIVE
To study the efficiency of Subtenon's anesthesia for intraocular surgery.


METHODS
Subtenon's infiltration anesthesia was performed in the following ocular surgeries: Extracapsular cataract extraction combined with intraocular lens(IOL) implantation (14 eyes), cataract aspiration with IOL implantation(5 eyes), iridectomy(2 eyes), trabeculetomy(3 eyes), and removal of silicon band after scleral buckle for retinal detachment (1 eye). After superficial anesthesia with 0.5% Dicaine solution and incision of limbal conjunctira were performed, a 22 gauge blunt connected with a 5 ml syringe containing a mixture of 2% lidocain and 0.75% of Bupivacaine was introduced posteriorly along with the surface of the sclera towards both 10:00 and 2:00 o'clock direction, under Tehon's capsule at tabout 10-15 mm away from the limbus. A slow injection of 1.5-2.0 ml of the anesthesia was made at the equator of the globe.


RESULTS
According to the standard made by Pang chenjiu, the efficiency of anesthesia was as follows: Grade I: 20 eyes(80%), Grade II: 4 eyes (16%), Grade III: 1 eye (4%).


CONCLUSIONS
It is an effective, safe and simple anesthetic method for intraocular surgery especially for those with single eye, glaucoma eye in absolute stage and old patient with insufficient heart function.
Bao
G
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Zhongshan Ophthalmic Center, Sun Yat-sen University of Medical Sciences, Guangzhou 510060, China.
D000328:Adult; D000368:Aged; D000772:Anesthesia, Local / Q000379:methods; D002387:Cataract Extraction; D003238:Connective Tissue; D005260:Female; D006801:Humans; D019654:Lens Implantation, Intraocular; D008297:Male; D008875:Middle Aged; D014130:Trabeculectomy