The most common disorders of vision which can occur at any age are myopia (short-sightedness), hyperopia (far-sightedness), and astigmatism. At approximately 45 years of age the additional disorder of presbyopia (loss of focussing for near) develops.
There are various treatment options for the above conditions which include various spectacle and contact lens solutions dealt with by your optometrist, or corneal refractive surgery and refractive lens surgery which are dealt with by your ophthalmologist. In general the reality is a good combined approach will give the best outcomes for your needs.
The various treatment options are very dependent on each individual and a careful explanation after your assessment will ensure you receive the most optimal solution for you.