Just 17% of the world's population has blue eyes, but why blue eyes are regarded as attractive is not known. Theories range from evolutionary psychologists who say that blue-eyed women in Palaeolithic societies had a better chance of standing out in the crowd, others posit that pupil dilation -- a signifier of attraction -- is easier to see in lighter eyes.
From the piercing blue eyes of Paul Newman to the steely gaze of Daniel Craig, azure eyes have always been a measure of attractiveness. For the majority of the world's population -- an estimated 80% - those elusive movie star eyes can usually only be obtained with the aid of colored contact lenses.
Lasik surgery, pictured above, is now a common procedure to correct sight disorders.The company says it has developed a laser treatment that disrupts the layer of pigment, causing the body to begin removing the tissue naturally. While the procedure takes all of 20 seconds, the blue eyes lurking underneath do not emerge for several weeks.
The laser procedure works by eliminating the brown melanin that's present in the anterior layers of the iris. "The fundamental principle is that under every brown eye is a blue eye," Dr Gregg Homer told CNN, adding that there is no actual blue pigmentation in the eye.
Unlike Lasik surgery, pictured above, the patient would be able to undergo the whole procedure seated in a chair. Critics say the procedure may carry the risk of glaucoma, but the company says the particles released by the process are too small to create eye health problems.