Pupil dilation with intracameral 1% lidocaine during glaucoma filtering surgery.
OBJECTIVE
To evaluate pupil dilation from intracameral injection of nonpreserved 1% lidocaine.


METHODS
Observational case series of 25 consecutive phakic trabeculectomies.


METHODS
Patients were evaluated in the operating room setting and given one drop of topical tetracaine preoperatively. Nonpreserved 1% lidocaine (0.1 cc) was injected intracameraly into the anterior chamber through a paracentesis site at the corneal limbus. Pupil diameter was measured after instillation of topical tetracaine, before injection of intracameral lidocaine. Postinjection measurements were made at 1, 3, and 5 minutes.


RESULTS
The mean male pupil diameter was significantly greater than female dilation at every time point. The mean blue iris diameter was greater than brown at 1 and 3 minutes, but there was no difference at 5 minutes or more. There was no racial difference in the pupil dilation response to intracameral lidocaine.


CONCLUSIONS
Nonpreserved intracameral 1% lidocaine produces immediate pupil dilation in previously undilated phakic patients during trabeculectomy surgery.
Lee
John J
JJ
Wills Eye Hospital Glaucoma Service, Philadelphia, Pennsylvania, USA. johnlee@pol.net
Moster
Marlene R
MR
Henderer
Jeffrey D
JD
Membreno
Jaime H
JH
D000772:Anesthesia, Local; D000779:Anesthetics, Local / Q000008:administration & dosage*; D000867:Anterior Chamber / Q000187:drug effects; D005127:Eye Color; D005260:Female; D005901:Glaucoma / Q000601:surgery*; D006801:Humans; D007267:Injections; D008012:Lidocaine / Q000008:administration & dosage*; D008297:Male; D011680:Pupil / Q000187:drug effects*; D012189:Retrospective Studies; D012737:Sex Factors; D014130:Trabeculectomy
D000779:Anesthetics, Local; D008012:Lidocaine