ANSWER: Astigmatism does change with age. More Info: Up until the age of between 40 and 45, astigmatism, a vision problem related to irregularities in the shape of the cornea, tends statistically to increase. However, beyond that point, the prevalence is for astigmatism to then stabilize or decrease. As people grow older, the pressure on the corneal surface from upper tarsal plates decreases, lessening the likelihood of ongoing changes in the surface of the human eye from circular to elliptical. At the same time, patients who suffer from astigmatism are likely to experience so-called “with-the-rule” symptoms during their first eye exam after age 40. Choosing the Right Contact Lens A recent sampling of UK eye prescription wearers found that nearly half of them suffered from astigmatism in at least one eye. A new kind of contact lens, the toric, has been developed specifically for people who suffer from astigmatism. When the human cornea is shaped like a football rather than a baseball, as is the case for astigmatism sufferers, it focuses light correctly along one axis (vertical) but incorrectly along the other axis (horizontal). As a result, light that enters the eye is not focused on a single point on [...]
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