Jodie is right, there is only a silicone crystalens. There is concern using silicone oil at the time of retinal surgery in a patient with a silicone IOL. The IOL can become cloudy.
However, if you have well-controlled diabetes and don't have diabetic retinopathy or any other retinal disease that is likely to require retinal surgery in the future, a silicone IOL is not a contraindication in a diabetic patient.
More incentive to keep your diabetes under good control if you choose Crystalens!
The Crystalens is a silicone IOL.