Novartis International AG (NYSE: AG) has agreed to buy Encore Vision Inc., a developer of topical treatment for loss of near distance vision, to add to the buyer’s ophthalmology division. Financial terms of the deal were undisclosed.

Encore Vision is a Fort Worth, Texas-based start-up that develops and distributes pharmaceuticals for the treatment of presbyopia, a vision disorder caused by the loss of elasticity in the lens of the eye. The age-related condition affects approximately 80 percent of people over the age of 45. While there are some therapies for presbyopia that only provide optical correction without addressing the cause of vision loss, there are no safe treatments available that could stop progression or reverse the disorder. Encore Vision’s product, called EV06, has been used in two phases of clinical trials, showing advancement in distant corrected near vision.

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