Eye detects 90% of information from the environment. On average, a person blinks 17 times per minute, 12 280 times per day, and 5.2 million times per year.
The eyesight is still not fully developed at birth. During the first few months, the brain and eyes have to work together for eyesight to fully develop. More than 50% of brain's working capacity is devoted to processing visual information.
Eyes don't reach their full size at birth. Their size is around 18 mm at birth, 19.5 mm during early childhood, and 24 to 25 mm during adulthood.
The human retina is the most important eye part that contains photoreceptors with 150 million rod cells (to distinguish day from night) and 7 million cone cells (to distinguish colours).
Fingerprint has 40 unique characteristics; an iris has 256.
Eyes need no rest. Part of the eye that focuses the image, the ciliary muscle, is the body's smallest and most active muscle.
As they age, people have fewer tears. Dry eye is a condition that occurs due to dysfunction of the tear film.
1% of people have a superhuman vision: it's primarily women who have a rare genetic mutation that results in having an additional cone in the retina.
Eye resolution is around 576 megapixels; iPhone 12 has 12 megapixels in each camera.
The eye is an immune-privileged organ: the cornea is devoid of the vasculature, making the eye the most successful organ transplantation.