Causes include: * Rickets : Nodularity at costochondral junction<unk> . * Scurvy : More angular costochondral junction with a sharper step-off (scorbutic<unk>  and depressed sternum. * Chondrodystrophy
Rachitic rosary
Band keratopathy
Tar melanosis
Bowenoid papulosis
Macular corneal dystrophy
Lattice corneal dystrophy
Granular corneal dystrophy
Exposure keratopathy