In most cases, adjustment to these side effects takes only a week or so. Astigmatism correction may involve a compromise between optimal clarity and visual discomfort. Some people notice blur themselves. Only a proper eye examination will determine for certain if you have astigmatism. Astigmatism is not an eye disease and any changes are generally gradual and not necessarily for the worse.
Most people have at least very slight astigmatism.
Presbyopia is a common condition which makes vision difficult at a normal reading distance. It is not a disease. Close tasks such as reading and sewing become difficult, particularly under poor lighting conditions. For example, you may find that you are holding your newspaper further away from your eyes to make the print clearer. Presbyopia does not affect distance vision.