Ocular Health Implications of the Loss of Dynamic Range of Focus Function in Presbyopia

    By PineDev

    Presbyopia is defined as the eye’s loss of ability to focus on objects at near distances, and it is the most common cause of age-related vision impairment. Presbyopia is a significant global health issue that is underdiagnosed. It affects all people in their 40s and older: an estimated 90 million people in the United States and more than 1 billion people worldwide, are affected.1 Of these, half a billion have no or inadequate spectacles, and 410 million are unable to perform important near tasks.13 Thus, presbyopia is both widespread and undertreated.

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