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  2. Albinism in humans - Wikipedia

    en.wikipedia.org/wiki/Albinism_in_humans

    Specialty. Dermatology. Albinism is a congenital condition characterized in humans by the partial or complete absence of pigment in the skin, hair and eyes. Albinism is associated with a number of vision defects, such as photophobia, nystagmus, and amblyopia. Lack of skin pigmentation makes for more susceptibility to sunburn and skin cancers.

  3. Congenital red–green color blindness - Wikipedia

    en.wikipedia.org/wiki/Congenital_red–green...

    Frequency. 2-9% males; <1% females. Congenital red–green color blindness is an inherited condition that is the root cause of the majority of cases of color blindness. It has no significant symptoms aside from its minor to moderate effect on color vision. [ 1] It is caused by variation in the functionality of the red and/or green opsin ...

  4. Color blindness - Wikipedia

    en.wikipedia.org/wiki/Color_blindness

    Frequency. Red–green: 8% males, 0.5% females (Northern European descent) [ 2] Color blindness or color vision deficiency ( CVD) is the decreased ability to see color or differences in color. [ 2] The severity of color blindness ranges from mostly unnoticeable to full absence of color perception. Color blindness is usually an inherited problem ...

  5. Harlequin color change - Wikipedia

    en.wikipedia.org/wiki/Harlequin_color_change

    Harlequin color change is a cutaneous condition seen in newborn babies characterized by momentary red color changes of half the child, sharply demarcated at the body's midline. This transient change occurs in approximately 10% of healthy newborns. [ 1] It is seen usually between two and five days of birth. The condition lasts from 30 seconds to ...

  6. Why your hair and eye colors change - AOL.com

    www.aol.com/news/2014-07-23-why-your-hair-and...

    Many babies are born with blue eyes, and then their eyes change color as their genes continue to develop. Hair color is the same way, sometimes, babies are born with very light colored hair that ...

  7. Optic nerve hypoplasia - Wikipedia

    en.wikipedia.org/wiki/Optic_nerve_hypoplasia

    Optic nerve hypoplasia (ONH) is a congenital condition in which the optic nerve is underdeveloped (small). Many times, de Morsier’s Syndrome or septo-optic dysplasia (SOD) is associated with ONH, however, it is possible to have ONH without any additional issues like SOD. SOD is a condition that can involve multiple problems in the midline ...

  8. Harlequin-type ichthyosis - Wikipedia

    en.wikipedia.org/wiki/Harlequin-type_ichthyosis

    A female baby born in Nagpur, India, in June 2016 died after two days. She was the first case reported in India. [38] [39] [40] Hannah Betts: Born 1989 in Great Britain; died in 2022 at 32 years old. [41] Ng Poh Peng was born in 1991 in Singapore. Doctors had not expected her to live past her teenage years. As of 2024, she is 32 years old. [42]

  9. Human skin color - Wikipedia

    en.wikipedia.org/wiki/Human_skin_color

    Human skin color. Human skin color ranges from the darkest brown to the lightest hues. Differences in skin color among individuals is caused by variation in pigmentation, which is the result of genetics (inherited from one's biological parents ), exposure to the sun, disorders, or some combination thereof.