So Far Away

More than 70 million people in North America are nearsighted. Myopic individuals can see “near” objects clearly without glasses, but objects farther in the distance are blurred.

Myopia, the medical term for nearsightedness, occurs when an eye is too long or strong for the light-bending ability of the cornea. Light rays entering the eye do not come to a sharp focus on the retina as they should, and instead focus in front of the eye, producing a blurred distance image.

Diagnosis and Treatment of Nearsightedness 

Nearsightedness usually begins in childhood and gets progressively worse through adolescence, but typically slows down in severity at young adulthood. Myopia can be corrected by any method that reduces the total refractive power of the eye.

Eyeglasses and contact lenses do this by putting in front of the eye “negative” lenses that are thicker at the edge than in the center. LASIK and PRK procedures decrease eye length (myopia) by flattening the central part of the cornea with the excimer laser utilizing photoablative disruption.

  • Mild myopia: < -3.00 diopters
  • Moderate myopia: -3.00 to -6.00 diopters
  • Severe myopia: -6.00 to -9.00 diopters
  • Extreme myopia: > -9.00 diopters

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