Color-changing contact lens could enhance monitoring of eye disease treatments

Color-changing contact lens could enhance monitoring of eye disease treatments

For all the good they do, eye drops and ointments have one major drawback: It’s hard to tell how much of the medication is actually getting to the eye. Now scientists report that they have developed a contact lens that changes color as drugs are released. This visual indicator could help eye doctors and patients readily determine whether these medications are where they should be. 
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https://www.sciencedaily.com/releases/2018/10/181010124932.htm