Certain people develop a heightened sensitivity to light, known as photosensitivity, and are more susceptible to visible light. Photosensitivity can develop with conditions, such as diabetes or recent eye surgery. The condition can also be caused by taking certain prescription medications. Some medications, even those used to treat conditions not related to vision, can cause the eyes to be more susceptible to damage from UV rays. Patients with special needs are excellent candidates for Transitions Lenses.