Glasses are still the most popular form of vision correction. Some types of ametropia (defocus of the eye) are best corrected by spectacle eyewear.
Different tasks and focus requirements, such ascomputer vision, benefit from special glasses made to assist the vision system, and prevent headaches, eyestrain or tired eyes. Specialty task glasses are usually worn part-time. Examples of task glasses include music glasses, driving glasses and computer/reading glasses.
Check out AntiqueSpectacles.com for an in-depth history on the origins, and art of spectacle making.