irises - online puzzles

The iris (plural: irides or irises) is a thin, circular structure in the eye, responsible for controlling the diameter and size of the pupil and thus the amount of light reaching the retina. Eye color is defined by that of the iris. In optical terms, the pupil is the eye's aperture, while the iris is the diaphragm.

Painting by Wincenty van Gogh online puzzleBlue irises. jigsaw puzzle onlineblue irises jigsaw puzzle online