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What is the prevalence of Leber Hereditary Optic Neuropathy?

How many people does Leber Hereditary Optic Neuropathy affect? Does it have the same prevalence in men and women? And in the different countries?

Prevalence of Leber Hereditary Optic Neuropathy

Leber Hereditary Optic Neuropathy (LHON) is a rare genetic disorder that primarily affects the optic nerves, leading to vision loss. It is estimated that LHON affects approximately 1 in 30,000 to 50,000 individuals worldwide. This condition is more prevalent in males than females and typically manifests in early adulthood. LHON is caused by mutations in mitochondrial DNA and can result in severe visual impairment or blindness. While there is currently no cure for LHON, certain treatments and interventions may help manage the symptoms and improve quality of life for affected individuals.



Leber Hereditary Optic Neuropathy (LHON) is a rare genetic disorder that primarily affects the optic nerve, leading to vision loss. It is estimated that LHON has a prevalence of approximately 1 in 30,000 to 1 in 50,000 individuals worldwide. Although LHON can affect both males and females, it is more commonly observed in males.


The condition is caused by mutations in the mitochondrial DNA, which is inherited maternally. These mutations disrupt the normal functioning of the mitochondria, leading to impaired energy production in the cells of the optic nerve. As a result, the optic nerve becomes damaged, leading to vision loss.


Typically, LHON presents in young adulthood, between the ages of 15 and 35. The initial symptoms often include a sudden and painless loss of central vision in one eye, followed by the other eye within weeks or months. The severity of vision loss can vary, ranging from mild to profound.


While LHON is a rare condition, genetic testing can help identify individuals who carry the mutations associated with the disorder. Early diagnosis and genetic counseling are crucial for affected individuals and their families.


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Stories of Leber Hereditary Optic Neuropathy

LEBER HEREDITARY OPTIC NEUROPATHY STORIES
Leber Hereditary Optic Neuropathy stories
My son was diagnosed with LHON when he was 11 years old. His vision is 6/120 now. He is taking Idebenone, Vitamin C and Curcumin now. 
Leber Hereditary Optic Neuropathy stories
My son was diagnosed at 17 with Lebers 3640 G strain as well as other previous health issues. We are learning slowly how to cope in new ways for him. He will be going to Branford in the fall to the school for the blind. It's a devastating disease , w...

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