In a recent study, it has been proved that by studying the optical reflexes of an individual, it can be easily revealed that whether a person is normal, gay or bisexual. In brief, signs of sexual orientation of a person could be easily read by analyzing his eyes.

According to scientists, the pupil of a person gets wide open as soon as they get aroused. This way all those around who are waiting to get a compatible mate for them, gets the indication.

Since last so many decades, the dilation of Pupil has been linked with an individual's level of excitement. Upon watching a puppy dog or a friendly face, the pupil surely opens a little. And now as advancement to this study, researchers have also discovered that the optical reflexes of an individual helps in solving the mystery of a man's sexual behavior.

For revealing the fact, Dr. Ritch Savin-Williams and Gerulf Rieger of Cornell University, analyzed a group of 165 men and 160 women, including gay, straight and bisexual participants. All of them were showed one-minute videos of a masturbating man, masturbating woman and neutral landscape scenes. Then there pupils were analyzed and the reality was discovered. As a result, the straight man were aroused after watching sexual images of women, gay were found attracted towards the sexual images of men and bisexuals responded to both men and women.