Distance vision is impaired when the eye is too long in relation to the curvature of the cornea. This causes light to focus before it reaches the retina. Close objects look clear but distant objects appear blurry.
A small amount of farsightedness is normal in children and does not need to be corrected since children have a much greater ability to change the focus of the eye than older adults. In older adults with farsightedness, close vision is impaired, with some impairment of distance vision, as well. The eye is too short in relation to the curvature of the cornea. Light rays are not yet in focus when they reach the retina, so images appear blurry.
The irregular curvature of the cornea causes light to focus on more than one point on the retina. Uncorrected astigmatism impairs both distance and near vision and, if uncorrected, can cause headaches in addition to poor vision.
When young, the lens of the eye is soft and flexible, allowing people to see objects both close and far away. After the age of 40, the lens of the eye becomes more rigid, making it more difficult for the lens to change its shape, or accommodate, to do close work such as reading. This condition is known as presbyopia and is the reason reading glasses or bifocals are necessary at some point after age forty.
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Boulder Eye Surgeons has been providing comprehensive medical and surgical eye care since 1997. We help patients of all ages in Boulder, Longmont, Lafayette, Louisville, and throughout Colorado to achieve and maintain clear vision. Our goal is to provide professional, compassionate and customized eye care to every patient, every time. We strive to understand your needs and exceed your expectations.