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Myopia Prevalence and Progression (1989) / Chapter Skim
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Appendix A: The Biological Basis of Myopia
Pages 43-44

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From page 43...
... As this reduction in total optical power occurs, any slight mismatch between optical power and axial length will also have a progressively small effect on refractive error; consequently, the degree of myopia or hyperopia will decrease. Whatever the mechanism, it is clear that growth in the direction of myopia from an initially hyperopic state in the newborn is a normal biological phenomenon affecting most eyes.
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From page 44...
... High levels of myopia frequently lead to blindness as a result of the rapidly increasing size of the posterior segment of the eye, causing degenerative changes in the retina (Curtin, 1985~. The pathophysiology of postnatal ocular expansion produces characteristic changes in the fundus appearance.
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Key Terms

  • optic nerve
  • crescent formation
  • biological mistakes
  • refractive error
  • axial length

  • inner ocular
  • degenerative changes
  • activities related
  • renewed growth
  • initially hyperopic

  • optical surfaces
  • pigment epithelium
  • degenerative processes
  • adult age
  • attached tissue

  • causing degenerative
  • myopia involve
  • growth limit
  • nerve near
  • involve axial

  • distant vision
  • total optical
  • gaussian distribution
  • usually stabilize
  • intense study

  • posterior segment
  • refraction changes
  • characteristic changes
  • increasing size
  • juvenile myopic


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