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Achromatopsia

Related Terms

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Background

  • Achromatopsia is a condition that leads to the inability to see color. About one in 30,000 people in the United States are affected with achromatopsia. This condition is much rarer than other forms of color blindness, such as red-green color blindness and X-linked color blindness.
  • Achromatopsia may either be acquired due to damage to the cerebral cortex of the brain (acquired achromatopsia), or it may be inherited due to mutations in specific genes (congenital achromatopsia).
  • Normally, color is sensed by cone cells in the retina of the eye. In congenital achromatopsia (a form of achromatopsia that is present at birth), the cone cells no longer function properly, resulting in color blindness. In cases of acquired achromatopsia, the cone cells typically are functional, and the color blindness results from other brain damage. Rod cells, another type of photoreceptor cell in the eye that function in less intense light than cone cells, are usually unaffected in patients with achromatopsia.
  • The severity of achromatopsia can vary among patients. Besides being unable to discriminate colors, patients may have blurred vision, nystagmus (involuntary eye movements, such as shaking or wobbling), or a heightened sensitivity to light that may cause discomfort or pain.

Risk Factors

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Causes

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Signs and Symptoms

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Diagnosis

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Complications

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Treatment

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Integrative Therapies

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Prevention

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Author Information

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References

Natural Standard developed the above evidence-based information based on a thorough systematic review of the available scientific articles. For comprehensive information about alternative and complementary therapies on the professional level, go to www.naturalstandard.com. Selected references are listed below.

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The information in this monograph is intended for informational purposes only, and is meant to help users better understand health concerns. Information is based on review of scientific research data, historical practice patterns, and clinical experience. This information should not be interpreted as specific medical advice. Users should consult with a qualified healthcare provider for specific questions regarding therapies, diagnosis and/or health conditions, prior to making therapeutic decisions.