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    Using a contact lens to treat corneal edema after cataract surgery

    It extracts fluid from the stroma, increase evaporation over lens surface

    Take-home message: A small study of using a new contact lens to treat corneal edema after cataract surgery reported positive results.


    A new contact lens to treat corneal edema after cataract surgery had favorable results in a group of 33 patients with corneal edema after extracapsular cataract extraction and IOL implantation and refractive lens exchange, said Claes Feinbaum, MSc, PhD, Department of Ophthalmology, Barzilai Medical Center, Ben Gurion University, Negev, Israel.

    Corneal edema due to inadequate endothelial pump function is a common complication after cataract surgery, Dr. Feinbaum said. Its causes can include mechanical injury, inflammation or infection, chemical injury, and concurrent eye disease.

    The contact lens, called the Hyper-CL and made by the Israel-based company EyeYon Medical, works to extract fluid from the cornea stroma and increase evaporation over the lens surface, Dr. Feinbaum said. The lens has a dual base curve with the groove and holes inside the lens. Its design “creates a micro-environment above the cornea center that will increase the contact time of any drop applied onto the lens surface,” Dr. Feinbaum said.

    Patients can wear the lens daily and remove it for disinfection. The lens needs to be replaced after 2 weeks.

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