There was a microneedle for the eyes, which decomposes after the injection of the drug

The new technique worked well in preclinical trials, the authors note.

According to the director

Terasaki Ali Institute of Biomedical InnovationKhademhosseini, with the help of a new and improved method of drug delivery, you can avoid the problems that arise when using a regular needle. 

Multiple injections carry a risk of infection, so the researchers created an ultra-thin microneedle that remains in the eye after application and eventually degrades.

Comparison of a microneedle and a conventional needle

The microneedle has a hydrogel plug that gradually releases the drug it is coated with and also seals the resulting hole in the eye. 

Scientists have successfully tested the technology on pigs and are now planning to begin experiments with humans. 

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