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  2. Periorbital dark circles - Wikipedia

    en.wikipedia.org/wiki/Periorbital_dark_circles

    Periorbital dark circles. Minor dark circles and a hint of periorbital puffiness —a combination principally suggestive of minor sleep deprivation. Periorbital dark circles (including dark circles of the lower eyelid) are dark blemishes around the eyes. There are many causes of this symptom, including heredity and bruising.

  3. Periorbital hyperpigmentation - Wikipedia

    en.wikipedia.org/wiki/Periorbital_hyperpigmentation

    Periorbital hyperpigmentation, also known as hereditary dark circles, is characterized by darker skin around the eyes caused by the presence of additional melanin. It is an extremely common hereditary human characteristic and is frequently found on individuals with dark skin. Periorbital hyperpigmentation is most prevalent within the 16–25 ...

  4. Hyperpigmentation - Wikipedia

    en.wikipedia.org/wiki/Hyperpigmentation

    Hyperpigmentation can be diffuse or focal, affecting such areas as the face and the back of the hands. Melanin is produced by melanocytes at the lower layer of the epidermis. Melanin is a class of pigment responsible for producing color in the body in places such as the eyes, skin, and hair. The process of melanin synthesis (melanogenesis ...

  5. Eyelid dermatitis - Wikipedia

    en.wikipedia.org/wiki/Eyelid_dermatitis

    Dermatitis on the eyelids causes inflammation of the thin, sensitive skin around the eyes. The eyelids become irritated, swollen, dry, and reddened. It can affect one or both of the eyes. If this condition continues, the eyelids can be thickened by lichenification. If it is caused by an irritant or allergen, symptoms typically occur within a ...

  6. Ocular melanosis - Wikipedia

    en.wikipedia.org/wiki/Ocular_melanosis

    Ophthalmology. Ocular melanosis ( OM) is a blue-gray and/or brown lesion of the conjunctiva that can be separated into benign conjunctival epithelial melanosis ( BCEM) and primary acquired melanosis ( PAM ), of which the latter is considered a risk factor for uveal melanoma. [1] The disease is caused by an increase of melanocytes in the iris ...

  7. Waardenburg syndrome - Wikipedia

    en.wikipedia.org/wiki/Waardenburg_syndrome

    Waardenburg syndrome is a group of rare genetic conditions characterised by at least some degree of congenital hearing loss and pigmentation deficiencies, which can include bright blue eyes (or one blue eye and one brown eye ), a white forelock or patches of light skin. These basic features constitute type 2 of the condition; in type 1, there ...

  8. Photoaging - Wikipedia

    en.wikipedia.org/wiki/Photoaging

    Signs, symptoms and histopathology. Early symptoms of photoaging: Dyspigmentation, the formation of wrinkles and other symptoms appear around regions of skin commonly exposed to sun, mostly the eyes, mouth and forehead. The lips may be affected. In Canadian women, the upper chest is commonly affected. Spider veins on face and neck

  9. Retinitis - Wikipedia

    en.wikipedia.org/wiki/Retinitis

    Retinitis is inflammation of the retina in the eye, which can permanently damage the retina and lead to blindness. The retina is the eye's "sensing" tissue. Retinitis may be caused by a number of different infectious agents. Its most common form, called retinitis pigmentosa, has a prevalence of one in every 2,500–7,000 people.

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