1. Pseudoxanthoma elasticum 2.Paget's Disease   3. Ehlers-Danlos Syndrome 4. Acromegaly 5. Old Age 6. Poisoning 7. High Myopia 8.

Hyperphosphatemia 9. Diabetic eye 10. Sickle cell disease 11. Sporadic disorder 12. Neurofibromatosis 13. Spherocytosis 14. Heamochrocytosis