The Intriguing Science of Human Vision

The human eye can differentiate approximately 10 million colors and our eyelashes have an average lifespan of five months. Each eye contains over 120 million rods for night vision and around 6 million cones for color vision.

On average, a person blinks 15-20 times per minute. That's about 1,200 times per hour and an astonishing 28,800 times in a day. Blinking helps to keep eyes moist and clear dust particles.

Nutrients like omega-3 fatty acids, lutein, zinc, and vitamins C and E might help ward off age-related vision issues. Carrots, known for beta-carotene, are indeed good for your eyes but so are leafy greens, eggs, and berries.

Lack of sleep can lead to popped blood vessels in the eye, and over time, it can contribute to dry eye syndrome. Consistently getting 7-8 hours of sleep is vital for maintaining good eye health.

Glaucoma, often called the 'sneak thief of sight,' can lead to vision loss without early symptoms. Regular eye exams are crucial for early detection, as treatment is much more effective when started early.

Tears are essential for eye health as they keep the eyes lubricated, remove irritants, and contain enzymes that protect against infection. Surprisingly, crying can also benefit vision by keeping mucous membranes hydrated.

Digital Eye Strain can be caused by looking at screens for too long without breaks. Symptoms include dry eyes, blurred vision, and headaches. The 20-20-20 rule suggests taking a 20-second break to view something 20 feet away every 20 minutes.