Cataract, the clouding of the lens, is a process where UV light causes certain molecules within the lens to “cross-link”.  This change renders the molecules a bit less transparent. As this accumulates, focus and flair become issues.  This cross-linking is considered reversible with molecules such as carnosine.  Carnosine can be administered orally, as zinc-carnosine (which can also help the stomach) as well as as eye drops (a product made in the UK, available online, called Can-C).  Of course this is for informational purposes only and should be reviewed with your personal physician before you add, delete or change any therapeutics.