Is surgery is the best way to correct a cataract?

Cataract. Yes. If the cataract is having an adverse effect on your daily life (driving, reading, etc.), then surgery is the best option.
Yes. If your cataracts are significant, surgery is the best option.
Maybe. If the vision is cloudy from the cataract, then surgery is the definitive cure. If the vision is clear but the catatact is only causing refractive changes then glasses or contact lenses can used until the vision becomes cloudy.
Yes. Currently, cataracts can be removed with surgery (which may involve laser), and they are removed if the underlying visual potential is good and the cataract is consistent as the cause of the visual complaint.