When your vision becomes poor due to nearsightedness or astigmatism, it means your cornea has lost its original shape and can no longer focus on its own. That's why you need glasses or contact lenses.   Laser vision correction procedures, like LASIK, are designed to reshape the cornea back to its original form, correcting nearsightedness and astigmatism and allowing the eye to once again focus on its own. Thus, the need for corrective eyewear has been drastically reduced - and often eliminated.   For many, the idea of not having the hassle and expense associated with glasses and contacts makes laser vision correction an ideal option.   For others, the ability to enjoy an active lifestyle without the interference of glasses or contacts makes laser vision correction truly an affordable investment.