Refractive Visual Problems

Myopia, hyperopia, and astigmatism are considered “refractive” errors that require corrective lenses to properly bend (or refract) light rays entering the eye. It is the proper refraction of light onto the retina that achieves “normal” eyesight.

At Cockrell Eyecare Center, we utilize the most technologically advance computerized equipment to measure your individual refractive error and in combination with your subjective responses, and with our doctor’s expertise, we arrive at the best possible method to correct your vision. Optically, your options are usually numerous and include various occupational, recreational, driving, and safety glasses and/or contact lens prescriptions. Laser vision correction is another option we can discuss.

  • Myopia (Nearsightedness). This means that near objects are clearer than distant objects. This occurs when your eye is too long in relation to the curvature of your cornea. Light rays entering the eye come to a focus in front of the retina which produces a blurred image.
  • Hyperopia (Farsightedness). This means that distant objects are clearer than near objects. This occurs when your eye is too short in relation to the curvature of your cornea. Light rays entering the eye come to a focus behind the retina and this also causes a blurred image.
  • Astigmatism. This occurs when your cornea is oval instead of round in shape. Usually the cornea is shaped more like a baseball but when there is astigmatism the cornea is shaped more like a football. The result is unequal bending of light rays entering the eye. This produces two different focus points causing distortion.

Refractive visual problems are measured in units called diopters. The more nearsighted or farsighted you are the higher your prescription is in diopters. Click here to see a Prescription Power Chart.

Contact us today at (405) 372-1715.

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