Background: Soft tissue infection after open lacrimal surgery is said
to be uncommon. This study was designed to determine the rate of infec
tion and the effect of early antibiotic prophylaxis after open lacrima
l surgery. Methods: Two consecutive patient groups undergoing open lac
rimal surgery were studied by review of case notes: the first group (1
52 patients) did not receive antibiotic prophylaxis after surgery, and
the second group (128 patients) did. Results: Infection occurred in 2
of the 128 patients who were given prophylactic antibiotics (1.6%) an
d in 12 of the 152 patients who were not (7.9%; P < 0.02). Silicone in
tubation did not affect the infection rate, but patients who had susta
ined previous facial trauma did have a significantly increased rate of
infection (P < 0.01). Conclusions: Soft tissue infection occurs in ap
proximately 8% of patients after open lacrimal surgery. A 5-fold reduc
tion in this rate can be achieved with routine administration of antib
iotics after surgery. The use of silicone tubing does not increase the
risk of infection.