Study of bacterial contamination associated with bandage contact lenses after photorefractive keratectomy

VernacularTitle:应用高透氧性角膜接触镜在准分子激光角膜切削术后的病原学分析
Author: Hui AI ; Xiaoyan DOU ; Bing FAN ; Baohong LIN ; Zhuocheng LI
Publication Type:Journal Article
Keywords: photorefractive keratectomy; bacterial contamination; contact lens
From: International Journal of Laboratory Medicine 2015;(14):1986-1987
CountryChina
Language:Chinese
Abstract: Objective To evaluate the occurrence rate and agents of the bacterial contamination of bandage contact lenses after photorefractive keratectomy(PRK) .Methods In a prospective study ,50 patients (100 eyes) underwent PRK .Conjunctival sac se‐creta were placed onto chocolate agar before PRK .All patients accepted bandage contact lenses and anti‐inflammatory drug therapy . Contact lenses and conjunctival sac secreta were placed onto chocolate agar after PRK .Corrected visual acuity ,intraocular pressure and corneal thickness were compared in the 2 groups .Results Among 100 pieces of cornea contact lens ,3 pieces (3% ) were tested positive for bacteria detection and bacteria were staphylococcus epidermis .All conjunctival sac secreta of preoperative and postoper‐ative were not detected bacteria ,postoperative eye infection was not found .Between the positive and negative groups ,tear secretion , may be related to cultivate positive correlation .Conclusion Bacterial contamination is possible when using bandage contact lenses after PRK ,specially for patients with less tear secretion .