Are there diets that will help heal cataracts? Are there diets that will prevent, if not heal, cataracts?

Any diet that has native antioxidants will have benefit for protecting the eye from those negative influences resulting in cataract formation. So whether there is ongoing diabetes with the proximal cause by changes in the pancreas through oxidative damage, coupled with local damage in the eye from deposition of waste products and changes in local biochemistry that are a kind of domino effect, as well as consequences of a chronic viral presence within the eye itself in causing collateral damage by the immune system attempting to stave off the invaders, there will be some benefit from such diets. There are supplements, as you know as well, that have been studied showing the support for maintaining the normal architecture of the lens and there are as well, opportunities from a diet standpoint to promote normal balance of forces and also bring healing benefit through repair mechanisms to undo accrued damage. This will vary in effectiveness depending on the individual, the degree of severity of what is coming or has come about, and often modulated by the Law of Karma influencing things for the worse if there is a karmic history of eye problems in other lifetimes, especially.