How to draw a human eye using the Intuitive Geometry method
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At any point (A) draw a circle of any size. Find any point on the circumference (B) and draw a circle with the same radius (AB).
Continue around drawing a circle at any new intersection (C etc.) on the circumference.
Find D. Draw a circle with radius AD.
Find and connect E & F . find G. Draw a circle with centre A and radius AG. Find H & I, connect them to find J. Draw a circle with centre A and radius AJ.
Find and connect K & L. Find and mark M & N. Draw an arch with centre m and radius MN. Draw an arch with centre N and radius NM.
This is the fundamental geometry of the human eye, you can use it as a template to draw any eye. Use 1 for the pupil, 2 for the iris, 3 for the lids, lashes etc., 4 to define the shape and 5 for the eyebrow and outer areas of the eye.
An example of how to draw a human eye using the Intuitive Geometry method.