单项选择题
To apply this eye medication,wash hands first．To avoid contamination,be careful not to touch the dropper or let it touch the affected area．Place the dropper directly over the eye and administer the prescribed number of drops．Look downward and gently close your eyes for 1 to 2 minutes．According to the above,which of the following is not correct（）
A．上药前洗手
B．注意不要使眼药水瓶口接触患处
C．滴好药水后睁开双眼l～2分钟
D．滴好药水后双眼下望
E．按处方规定的滴数使用