Most people who depend on contact lenses or glasses have nearsightedness (myopia), farsightedness (hyperopia), or astigmatism. For the most part, these disorders occur separately in a person’s vision, although astigmatism may occur with either myopia or hyperopia. Millions of people have found relief from these vision impairments without the use of glasses or contact lenses through laser vision correction or other corrective procedures.
» Nearsightedness
» Farsightedness
» Astigmatism
» Presbyopia
Nearsightedness (myopia) occurs when the curvature of the cornea is too steep or when the eye is too long, causing the light rays to focus in front of the retina rather than on the retina. This causes near objects to look focused, while causing distant objects to appear quite blurry. LASIK eye surgery (a laser vision correction method), available at our San Diego and Carlsbad offices, can help restore distant vision without contact lenses or glasses.
Farsightedness (hyperopia) occurs when the cornea is too flat or the eye is too short to focus light rays on the retina. Younger people are able to overcome these problems by changing the position and shape of the lens (accommodation), enabling them to focus images on the retina. However, as these people grow older, they first lose the ability to see images up close, and later distant objects become blurred. Laser vision correction options include LASIK eye surgery in San Diego with InnoVision Eye Care Center.
Astigmatism occurs when the surface of the cornea has an irregular shape to it, causing images to focus at many different points within the eye. This can result in blurred or double vision. This condition can occur with both nearsightedness and farsightedness.
Presbyopia is an eye condition linked to aging. It is generally believed that as people age the lenses in their eyes lose their flexibility, and the muscle fibers surrounding the lens weaken, making it difficult to focus on objects up close. Presbyopia happens to just about everyone as they age, and there are many ways to counter it. Some people choose to wear bifocals; others wear contact lenses, reading glasses, or both; and still others elect a surgery called conductive keratoplasty (CK) that can temporarily reverse the effects of presbyopia. Another option for treating the effects of presbyopia is the Crystalens, ReSTOR, or Rezoom , intraocular lens implants that allow patients to see distant, intermediate and near objects clearly.