This section organizes the procedures by when they appeared historically, as well as supplies particulars to aid in making comparisons. The most common method of correcting vision, spectacles can treat a wide range of myopia, hyperopia and astigmatism.
Glasses work adequately for many people.
However, others find that spectacles are obstacles in their work, recreation or other pursuits. High myopes usually need thick glasses that tend to interfere with peripheral vision and change image size. Distant objects appear smaller when looking through thick glasses than when looking through lenses that fit close to the eye, like contact lenses. A hard or soft contact lens can be fitted to the myopic, hyperopic or astigmatic eye that is free of corneal diseases or other problems that would prevent wearing such a lens. Contact lenses may offer advantages over spectacles, including peripheral vision and a more normal image size.