The US has approved a new type of eye drop, which could eliminate the need for reading glasses.

Called Vuity, the drop is applied to each eye once a day and starts working within 15 minutes of application. The makers say each drop lasts for at least six hours.
As per the report, the drug is a formulation of a well-known compound known as pilocarpine.
How Does the New Eye Drop Work?
The researchers behind Vuity designed it to allow for the eye drop to rapidly adjust to the pH of the tear film.What the drop does is take advantage of the eye’s ability to reduce pupil size, and improve near-vision whilst maintaining distance vision.
The drop has been found to be most effective for those between the ages of 40 and 55.
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It was during these studies that Vuity was observed to start working within 15 minutes of application.
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Source-IANS