Format

Send to

Choose Destination
J Cataract Refract Surg. 1997 May;23(4):545-50.

Unpreserved lidocaine to control discomfort during cataract surgery using topical anesthesia.

Author information

1
St. Luke's Cataract and Laser Institute, Tarpon Springs, Florida 34688-5000, USA.

Abstract

PURPOSE:

To determine whether intraoperative unpreserved lidocaine further decrease discomfort or pain during sutureless small incision cataract surgery and intraocular lens (IOL) implantation under topical anesthesia.

SETTING:

Outpatient ambulatory surgical center.

METHODS:

In this prospective controlled study, comparable eligible patients were randomized to receive 0.1 cc unpreserved lidocaine 1% or 0.1 cc balanced salt solution (BSS) (control group) in double-masked fashion. Study drugs were injected intracamerally 1 minute before phacoemulsification. A predefined uniform pain/discomfort scale was used for assessment during phacoemulsification and IOL insertion. A secondary study using a 0.5 cc dose was also performed.

RESULTS:

Twenty-six percent in the control group and 9% in the lidocaine group had discomfort pain scores of 2 or more; 10% in the BSS group felt increased pressure or pain during phacoemulsification. In the lidocaine group, discomfort was felt mainly during IOL insertion, possibly as a result of wound manipulation. During phacoemulsification, no patient in the lidocaine group reported pain; 2% felt increased pressure during phacoemulsification. A dose increase to 0.5 cc reduced any intraocular sensation to 3% in the lidocaine group. No patient in either group had significant cell loss or adverse events.

CONCLUSION:

Intraoperative lidocaine is safe and effective in controlling intraoperative discomfort.

PMID:
9209989
DOI:
10.1016/s0886-3350(97)80211-8
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Elsevier Science
Loading ...
Support Center