Damage of the corneal epithelium by using different surface anesthetics in A ultrasound examination

Abstract

AIM: To compare corneal epithelial injury by using different surface anesthetics in A ultrasound examination. METHODS: Subjects who accepted A ultrasound examination were randomly divided into three groups: 5g/L tetracaine group(n=50), 20g/L lidocaine group(n=60)and 5g/L Aier Kai genome group(n=60). The patients were instructed to use the surface anesthetics three times in a five minute interval before the A ultrasound examination. Corneal epithelial injury was measured by corneal fluorescein staining. RESULTS: χ2 test results showed the CSF score of three groups had significant difference(PPCONCLUSION: Varying degrees of damage to the corneal epithelium caused by surface anesthetics and toxic effects of 5g/L Aier Kai genome on the corneal epithelium is minimum.

Keywords

• surface anesthesia
• corneal epithelium
• A ultrasound examination