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A series of black-and-white or digital photographs are taken of the retina before and after the fluorescein reaches the retinal circulation (approximately 10 seconds after injection). The early images allow for the recognition of autofluorescence of the retinal tissues.
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 ...
Kohl ( Arabic: كُحْل, romanized :kuḥl ), Kajal, Kajol, Surma, or Tiro is an ancient eye cosmetic, traditionally made by grinding stibnite for use similar to that of charcoal in mascara. It is widely used in the Middle East and North Africa and throughout the wider world, typically as eyeliner to contour or darken the eyelids.
Hair coloring, or hair dyeing, is the practice of changing the color of the hair on humans' heads. The main reasons for this are cosmetic: to cover gray or white hair, to alter hair to create a specific look, to change a color to suit preference or to restore the original hair color after it has been discolored by hairdressing processes or sun bleaching .
The Ilocanos ( Ilocano: Tattao nga Iloko / Ilokano ), Ilokanos, or Iloko people are the third largest Filipino ethnolinguistic group. They mostly reside within the Ilocos Region, in the northwestern seaboard of Luzon, Philippines. The native language of the Ilocano people is the Ilocano (or Ilokano) language .
Aeta (Ayta / ˈaɪtə / EYE-tə ), Agta and Dumagat, are collective terms for several indigenous Filipinos who live in various parts of Luzon island in the Philippines. They are also known as the " Philippines Negrito "; and they are included in the wider Negrito grouping of Southeast Asia, with whom they share superficial common physical characteristics such as: dark skin tones; short ...
A variety of human hair colors; from top left, clockwise: black, brown, blonde, white, red. Human hair color is the pigmentation of human hair follicles and shafts due to two types of melanin: eumelanin and pheomelanin. Generally, the more melanin present, the darker the hair. Its tone depends on the ratio of black or brown eumelanin to yellow ...
Eye color is a polygenic phenotypic trait determined by two factors: the pigmentation of the eye 's iris [1] [2] and the frequency-dependence of the scattering of light by the turbid medium in the stroma of the iris. [3] : 9. In humans, the pigmentation of the iris varies from light brown to black, depending on the concentration of melanin in ...