Dinsmore S C
19000 Hawthorne Blvd., suite 110, Torrance, CA 90503
Ophthalmic Surg Lasers. 1996 Nov;27(11):935-8.
Phacoemulsification with topical anesthesia has been accepted by some ophthalmologists as a minimally invasive alternative technique for cataract surgery. This study approaches a 100% success rate using topical anesthesia with mild intravenous (i.v.) sedation in phacoemulsification procedures.
Two hundred consecutive patients underwent clear-corneal phacoemulsification. Patients were not preselected. Lidocaine hydrochloride topical anesthesia was supplemented with small-dose i.v. midazolam hydrochloride and/or fentanyl citrate. Patients underwent meticulous preoperative counseling. Those with dementia, deafness, movement disorders, or hyperanxiety, or those who spoke a foreign language or who were young required special management. Additional techniques were employed for ophthalmologic problems such as small pupil, mature cataract, and strong blink/Bell's phenomenon. Patient comfort was noted intraoperatively and postoperatively.
Ninety-seven percent of the patients did well, with only 3% requiring regional block or general anesthesia.
Using nucleofractis phacoemulsification with special techniques in more difficult situations, most patients were successful with topical anesthesia plus i.v. sedative anesthesia.
