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  2. Retinitis pigmentosa - Wikipedia

    en.wikipedia.org/wiki/Retinitis_pigmentosa

    1 in 4,000 people [1] Retinitis pigmentosa ( RP) is a genetic disorder of the eyes that causes loss of vision. [1] Symptoms include trouble seeing at night and decreasing peripheral vision (side and upper or lower visual field). [1] As peripheral vision worsens, people may experience "tunnel vision". [1] Complete blindness is uncommon. [2]

  3. Macular degeneration - Wikipedia

    en.wikipedia.org/wiki/Macular_degeneration

    8.7% global prevalence in 2020 [ 2] Macular degeneration, also known as age-related macular degeneration ( AMD or ARMD ), is a medical condition which may result in blurred or no vision in the center of the visual field. [ 1] Early on there are often no symptoms. [ 1] Over time, however, some people experience a gradual worsening of vision that ...

  4. Stargardt disease - Wikipedia

    en.wikipedia.org/wiki/Stargardt_disease

    Genetic. Diagnostic method. Slit lamp. Treatment. None. Stargardt disease is the most common inherited single-gene retinal disease. [ 1] In terms of the first description of the disease, [ 2] it follows an autosomal recessive inheritance pattern, which has been later linked to bi-allelic ABCA4 gene variants (STGD1).

  5. Vitelliform macular dystrophy - Wikipedia

    en.wikipedia.org/wiki/Vitelliform_macular_dystrophy

    Vitelliform macular dystrophy is an irregular autosomal dominant eye disorder which can cause progressive vision loss. [1] This disorder affects the retina, specifically cells in a small area near the center of the retina called the macula. The macula is responsible for sharp central vision, which is needed for detailed tasks such as reading ...

  6. Geographic atrophy - Wikipedia

    en.wikipedia.org/wiki/Geographic_atrophy

    Geographic atrophy (GA), also known as atrophic age-related macular degeneration (AMD) or advanced dry AMD, is an advanced form of age-related macular degeneration that can result in the progressive and irreversible loss of retinal tissue ( photoreceptors, retinal pigment epithelium, choriocapillaris) which can lead to a loss of visual function ...

  7. Central serous chorioretinopathy - Wikipedia

    en.wikipedia.org/wiki/Central_serous_chorio...

    Central serous chorioretinopathy ( CSC or CSCR ), also known as central serous retinopathy ( CSR ), is an eye disease that causes visual impairment, often temporary, usually in one eye. [ 1][ 2] When the disorder is active it is characterized by leakage of fluid under the retina that has a propensity to accumulate under the central macula.

  8. List of ICD-9 codes 320–389: diseases of the nervous system ...

    en.wikipedia.org/wiki/List_of_ICD-9_codes_320...

    320.4 * Tuberculous meningitis ( 013.0 †) 320.5 * Meningococcal meningitis ( 036.0 †) 320.7 * Meningitis in other bacterial diseases classified elsewhere. 320.8 Meningitis due to other specified bacteria. 320.9 Meningitis due to unspecified bacterium. 321 * Meningitis due to other organisms.

  9. Leber's hereditary optic neuropathy - Wikipedia

    en.wikipedia.org/wiki/Leber's_hereditary_optic...

    1:30,000 to 1:50,000. Leber's hereditary optic neuropathy ( LHON) is a mitochondrially inherited (transmitted from mother to offspring) degeneration of retinal ganglion cells (RGCs) and their axons that leads to an acute or subacute loss of central vision; it predominantly affects young adult males. LHON is transmitted only through the mother ...