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About Vision Disorders

Myopia (Nearsightedness)

Nearsighted individuals typically have problems seeing well at a distance and are forced to wear glasses or contact lenses. The nearsighted eye is usually longer than a normal eye, and its cornea may also be steeper. Therefore, when light passes through the cornea and lens, it is focused in front of the retina.

This will make distant images appear blurred. There are several refractive surgery solutions available to correct nearly all levels of nearsightedness.

Hyperopia (Farsightedness)

Farsighted individuals have difficulty seeing at distance and at near since the rays of light come to focus behind the retina. They typically develop problems reading up close before the age of 40. The farsighted eye is usually slightly shorter than a normal eye and may have a flatter cornea.

Thus, the light of distant objects focuses behind the retina unless the natural lens can compensate fully. Near objects require even greater focusing power to be seen clearly and therefore, blur more easily. LASIK, Refractive Lens Exchange, and Contact lenses are a few of the options available to correct farsightedness.


The asymmetric steepening of the cornea or natural lens causes light to be focused unevenly, which is the main optical problem in astigmatism. To individuals with uncorrected astigmatism, images may look blurry or shadowed. Astigmatism can accompany any form of refractive error and is very common.

Astigmatism can be corrected with glasses, contact lenses, corneal relaxing incisions, laser vision correction, and special intraocular lenses.


Presbyopia is a condition that typically becomes noticeable for most people after the age of 40. In children and young adults, the lens inside the eye can easily focus on distant and near objects. With age, the lens loses its ability to focus adequately.

Although presbyopia is not completely understood, it is thought that the lens and its supporting structures lose the ability to make the lens curvature greater during close vision effort. To compensate, affected individuals usually find that holding reading material further away makes the image clearer.

Ultimately, aids such as reading glasses are typically needed by the mid-forties. Besides glasses, presbyopia can be dealt with in a number of ways. Options include monovision and multifocal contact lenses, monovision laser vision correction, conductive keratoplasty (NearVision CK), new presbyopia-correcting intraocular lenses, as well as the AcuFocus corneal inlay.

Presbyopia is a condition in which the ability to see up close in normal individuals, farsighted individuals, or individuals who have been nearsighted and undergone refractive eye surgery decreases as the age of 40 is approached. This physiological condition traditionally has required the use of reading glasses with plus lenses or bifocals in order to read.

Presbyopia causes the near point, the closest point from your eyes at which you can see objects distinctly, to recede as we grow older. To learn more about presbyopia, click here!