How The Eye Works

Our eyes allow us to appreciate the beauty of the world, experience the joy of learning new activities, and undertake new adventures. The entire staff of Northern Waters Ophthalmology wants to share this educational video on the anatomy of the eye in hopes that it will provide you with a better understanding of the importance of having a routine eye exam. Comprehensive eye exams are the best way to keep your eyes healthy and your vision intact. Watch the video to learn more:

How the Eye Works

Eyes are the organs of vision. Through a complex process, they detect and focus light to create images. Vision begins when light rays are reflected off of an object and enters the eye through the cornea and then pupil. It then passes through the crystalline lens which refracts light to be focused on the retina. By changing shape, the lens functions to change the focal distance of the eye so it can focus on objects at various distances. When light hits the retina, tiny cells, rods, and cones, capture the light signals and convert them into electrochemical impulses in neurons. Rods communicate the object’s shape by reading black and white and shades of gray. Cones communicate the color of the object. Working together, the rods and cones process the light to create an image by triggering nerve impulses that pass to the image centers in the brain via the optic nerve.