A scatter-inducing cataractic lens can be removed and replaced with an intraocular lens. These procedures improve vision by reducing scatter.
Pilots are another category.
We take here the best post-surgical results, putting aside any complications. Glasses or contact lenses do not automatically introduce glare. They work for anyone, pilot or not. As interested and informed aeromedical people, we should be favoring standards for aeromedical certification of pilots which enhance safety . Corneal sculpting does not.