KAMRA is a corneal inlays which is surgically implanted into the cornea. The KAMRA inlay is implanted in the cornea of the non-dominant eye only, and increases its depth of focus. It is a thin opaque ring with a central opening and can be thought of as a contact lens permanently implanted in between the layers of the cornea. It is similar to the aperture in a photo camera or a pinhole. As a result, the amount of light entering the eye is reduced, but the depth of focus is increased which results in distant, intermediate, and near objects to all be in focus at the same time. The dominant eye remains unaltered and retains distance vision only. The side effects of the KAMRA inlay may include difficulties with contrast sensitivity, problems with night vision, double vision, ghost images, glare, halos, and color disturbances.