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The Optical Illusion
Optical Illusion is a default in the principle of evaluation of reality operated by our
sensorial system (eye/brain). Make Up is based on this theory and only following this
principle we can modify partially or totally volumes and contours of a face.
Optical Illusion can be widely employed in a corrective Make Up.
Consider a subject overweight: in a black dress this will look slimmer. The same with a
vertical striped dress: our eye will perceive it slender.
Using the same logic, a shadow on a face volume will flatit down and a blush or an eye
liner applied vertically on the face will emphasize the lenght of it.
Shown herebelow are some examples of Optical Illusion:
FIG 1
Apparently A looks bigger than B; actually they are exactly the
same size. To our sensorial system, dimensions are related to
the entire scenary the entity is surrounded by more than to the
single entity. According to this principle of evaluation, A
surrounded by small circles looks bigger than B which is still
surrounded by circles but with a larger diameter. The same
principle is valid for the morphology of a face; a standard nose
will look smaller on a wide face and bigger on a tiny one.
FIG 1
A
B
FIG 2
FIG 2
An other example of Optical Illusion.
C e D have the same dimensions; however, if we consider the
overall, the lenght of the two segments looks different.
C
D
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