Central heterochromia is where the central (pupillary) zone of the iris is a darker color than the mid-peripheral (ciliary) zone. I had no idea my eye color had a technical name. It looks like a sunflower around my pupil.
Abbott has earned FDA approval for its Tecnis Symfony Intraocular Lenses for the treatment of cataracts. The approval includes the Tecnis Symfony Toric IOL, a version of the lenses that are made for people with astigmatism.