Fig. 9 Ocular siderosis. A. Pigment clumping on the anterior lens capsule in eye penetrated by iron foreign body with nonrecordable electroretinogram. B. Small, occult foreign body (large arrow) had penetrated iris many years previously. Pigment clumps on lens capsule with dense cataract. Elevated pressures were controlled, and the electroretinogram was only mildly affected, allowing 20/20 (metric equivalent 6/6) visual recovery after cataract removal. Metallic foreign body was localized to anterior segment and easily removed by magnet extraction at the time of cataract surgery.