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    Lens implant (above) and an image of the lens implant in the eye after cataract surgery (right)

    CATARACT

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    Cataract is the clouding of the natural lens in the eye which occurs as people get older. Development of cataracts can occur more rapidly after glaucoma surgery, and special care is required in the management of such cases in order to prevent failure of any previous surgical intervention to lower the eye pressure.

    Patients with cataracts may notice a gradual deterioration in the quality of their vision over time, with an increased need to frequently update their spectacle prescription. Other symptoms may include difficulty in reading and performing close work, and glare or dazzle from oncoming headlights when driving a motor vehicle at night.

    Patients with cataracts may notice a gradual deterioration in the quality of their vision over time, with an increased need to frequently update their spectacle prescription. Other symptoms may include difficulty in reading and performing close work, and glare or dazzle from oncoming headlights when driving a motor vehicle at night.

    Cataract surgery involves using ultrasound ("phacoemulsification") to break down and remove the cloudy lens, followed by injection of a plastic lens that stays in the eye forever. Surgery is usually performed as a day case using drops alone to numb the eye, however more deeper numbing of the eye and even sedation is possible should patients desire. The operation takes around twenty minutes and the significant improvement in vision is usually noticed within the first few days after surgery. Following surgery, patients do not usually require glassed for distance vision, but reading glasses may be required.

    For a more detailed information booklet on what to expect before, during and after cataract surgery, please click here. For a more detailed animation of how cataract surgery is performed please click here.