This might sound like the stuff of horror movies, but to treat some diseases you need to have drugs carefully injected into your eye.
Not only does the process sound terrible, there's actually quite a few things that could go wrong. For example, there's endophthalmitis – which is a bacterial infection caused by bacteria entering the hole where the needle went in.You can also damage the eye tissue from repeated injection. Even worse, tumor cells could float through the newly made hole and spread to other areas.
The new technique has performed well in preclinical tests but unfortunately for our nightmares, it still involves eye needles. The scientific term for injecting the eye is 'intravitreal injection', as it places the drug into the vitreous . It's used to treat a number of diseases, including age related macular degeneration and diabetic eye disease.into the jelly-like substance in the eye.
The microneedle has a hydrogel 'plug' to seal up the created hole and gradually releases the drug it is coated in while inside the eye area. You can see an illustration of what this looks like below.The researchers – who were mostly from institutions across South Korea – tested the new system in a couple of ways.
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