Dr. Prausnitz says some people may find the microneedles uncomfortable despite their size.

普罗斯尼茨博士说，尽管这种微针头很细，也会有得不舒服。

These instruments, called microneedles, can put medication into the front of the eye, exactly where it is needed.

称作微针头，可以把药物注射到睛前面，正好是需要治疗位置。

In their report, the researchers say the new technology has microneedle patches that administer a vaccine when pressed against the skin.

在报告中，研究员说，这项新技术有微针贴片，当按压在皮肤上时，可以注射疫苗。

The microneedles are either hollow or empty, like a normal hypodermic needle, or covered with a drug which breaks down in the eye.

这种微针头像普通皮下注射针头一样是中空，或者覆盖了一层在睛里分解药物。