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Certain types of sports demand a level of visual precision above and beyond what is required in other areas of one’s life. These are the sports where a hair-length’s difference could separate gold from silver, or victory from defeat. The following four sports are a representation of activities where visual acuity takes on a whole new level of importance.

Eyes are the window to the soul, so the saying goes, but they also provide insight on human history; for centuries, the symbolism of eyes has appeared in churches, temples, and even on money. Here are just a few examples.

How to tell if someone is lying is something that has haunted everyone including skeptical mothers, jealous lovers, probing attorneys, avaricious poker players, and interrogating cops, among many others. 

Having different colour eyes, which is known as heterochromia, is a condition present in a significant number of the world’s population, including some of the most well-known actors, actresses, and entertainers.

As any scuba diver or snorkeler will surely tell you, underwater vision can be a fascinating and rewarding experience. The reason why your unaided vision goes blurry underwater requires a basic discussion of the behaviour of light rays and the human eye.

Sunglasses aren’t just ideal tools for completing outfits. Apart from being great fashion accessories, the right pair of shades also provides excellent protection against glare, ultraviolet (UV) rays, and everyday physical hazards. One thing to keep in mind, however, is that not all kinds are created equal. Knowing what type of sunglasses to look for—and what defence they offer—is critical to making your next purchase.

Though I knew that the recovery from LASIK is usually quick and virtually painless, I was still nervous when I went in for my procedure.

According to a long-term research study from the University of Copenhagen, it’s likely that anyone with blue eyes shares a common ancestor. While variation in human eye colour is caused by at least 15 separate genes, mutation in a single gene produces blue, and can be traced to a specific DNA location.

The first LASIK corrective procedure took place in 1992, though the treatment can trace its roots back much farther: to the development of keratomileusis in the 1960s, and the evolution of photorefractive keratectomy (PRK) in the 1970s. Combined, these technologies paved the way for the modern Advanced Custom Wavefront LASIK and All-Laser LASIK procedures.