There are about 48,000 corneal transplants done each year in the U.S., compared to approximately 16,000 kidney transplants and 2,100 heart transplants 12. Out of the 48,000 corneal transplants done, 10 percent of them end up in rejection, largely due to poor medication compliance. The nanoparticle loaded with medication could eliminate the need for a patient to remember to take their medicine – often multiple doses per hour – after a surgery, alleviating compliance risk. These types of drug delivery systems could be paired with other drugs and used in other conditions, such as glaucoma, macular degeneration and corneal ulcers, among others.
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