An eye is a sensory organ that allows an organism to perceive visual information. It detects light and converts it into electro-chemical impulses in neurons (neurones). It is part of an …

Most people are born with two eyes. Working together, they give you a field of view about 200 degrees wide and 135 degrees tall. When your eyes work together correctly, they give you …

Sep 22, 2025 · human eye, in humans, specialized sense organ capable of receiving visual images, which are then carried to the brain.

Apr 29, 2023 · To understand the diseases and conditions that can affect the eye, it helps to understand basic eye anatomy. Here is a tour of the eye starting from the outside, going in …

Browse or search our resources about dozens of eye conditions and diseases. Get the basics about symptoms, diagnosis, and treatments — or go in depth to see all the details.

Nov 6, 2024 · Most of the eye is filled with a clear gel called the vitreous. Light projects through your pupil and lens to the back of the eye. The inside lining of the eye is covered by special...

Light enters the eye through the cornea, the clear, curved layer in front of the iris and pupil. The cornea serves as a protective covering for the front of the eye and also helps focus light on the …

Mar 16, 2024 · What are the main parts of the human eye and their functions? The human eye has key parts, including the cornea (which focuses light), iris (controls light entry), lens …

How your eye works In the literal blink of an eye, you can perceive and respond to visual triggers — like a word on a computer screen, a low-hanging tree branch, or even an oncoming car. But …

If you want to become familiar with the parts of the eye, we have a guide to its anatomy. Learn all about how the eye works!