ögonanatomi

Ögonanatomi, also known as ophthalmic anatomy, is the study of the structure and organization of the eye. The eye is a complex organ composed of several distinct parts, each with specific functions. The outer layer of the eye is the sclera, a tough, white tissue that provides structural support. The cornea, a transparent layer covering the front of the eye, allows light to enter. Behind the cornea is the iris, a colored ring that controls the size of the pupil, the black circular opening in the center of the iris. The pupil allows light to pass through to the lens, which focuses the light onto the retina. The retina is a light-sensitive layer of tissue at the back of the eye that contains photoreceptor cells, which convert light into electrical signals that are sent to the brain via the optic nerve. The eye also contains several other structures, including the vitreous humor, a gel-like substance that fills the interior of the eye, and the aqueous humor, a fluid that circulates within the eye. Understanding the anatomy of the eye is crucial for diagnosing and treating various eye conditions and diseases.