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A Glimpse Into Albinism

Physiological changes have been taking place ever since the first organisms appeared on Earth. These changes have led to the tremendous variation we see in modern humans today. To try and explain these differences, scientists use human fossil remains as well as other primate remains to trace evolutionary similarities. Important fields of study such as anthropology, biology, primatology and paleoanthropology also help in the attempt to adequately explain human anatomical differences and their reasons for occurring (Jolly 9-10). A commonly misunderstood and extremely interesting example of human variation is albinism.

Nearly one in every 17,000 people has some form of albinism and the United States has reported over 18,000 such cases. Sufferers of albinism exhibit very little or have no pigment in their skin, eyes and hair. Strangely enough, parents of those who have this condition in most cases have hair, eye and skin color that are typical of their race and it is rare for there to be a family history of it (Haefemeyer 55-56). Sufferers of albinism have inherited a malfunctioned and altered copy of their parent's gene that codes for melanin production. This is most commonly known as autosomal r


Contrary to popular belief, especially prior to the twentieth century and the advent of modern science, children with albinism will mature physically and mentally just as any other child would. Growth stages will take place at the expected ages all the way up until adulthood where a long, healthy life is common. The brain, the musculoskeletal system, the respiratory system, the digestive system, and the cardiovascular system are not adversely affected by the melanin reduction that accompanies albinism (Haefemeyer 60).

ecessive inheritance, where if both parents carry a gene for albinism, there is a one in four chance that their baby will inherit the disease. This lack of melanin in their pigment can cause a plethora of health problems for anyone who suffers from a form of albinism.

The absence of melanin pigment also causes abnormalities involving the development of the nerves that connect the retina to the brain. Individuals with albinism have nerve connections that are organized in an unusual manner where more nerve fibers cross to the opposite side of the brain than normal. This can be attributed to the decreased depth perception "albinos" experience. Faulty eye to brain nerve connections can also result in a condition common to "albinos" known as Nystagmus (Witkop 2905). This causes involuntary movement of the eye and makes it especially difficult to focus or read. Many sufferers of albinism have to tilt their head in a certain direction in order to decrease the movement and facilitate reading. Eye muscle surgery can reduce the effects of Nystagmus, but a complete cure has not been attained thus far. In fact, none of the eye problems associated with albinism can be cured, but can be reduced to a comfortable level. Tinted sunglasses, bifocals,!

magnifiers, video/text enlargements, telescopic lenses mounted on glasses, and even bioptics all aid in the vision of "albinos."

Probably most affected by a lack of education regarding albinism are those in Africa who have this condition. A lack of advanced science and tech

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Approximate Word count = 1383
Approximate Pages = 6 (250 words per page double spaced)


  

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