2023年4月29日 · The surface of the eye and the inner surface of the eyelids are covered with a clear membrane called the conjunctiva. The layers of the tear film keep the front of the eye lubricated. Tears lubricate the eye and are made up of three layers.

The transparent structure inside the eye that focuses light rays onto the retina. Lower eyelid. Skin that covers the lower part of the eyeball, including the cornea, when closed. Macula. The central portion of the retina that allows us to see fine details. Optic nerve. A bundle of nerve fibers that connect the retina with the brain.

2025年1月27日 · The eye is a specialized sensory organ responsible for vision. It is a spherical, fluid-filled structure that detects light and transmits visual information to the brain via the optic nerve. The eye is protected by surrounding bony structures, eyelids, and soft tissues.

2024年10月23日 · What Are the Different Parts of the Eye? The human eye is a complex organ composed of several interconnected parts, each with a specific function in vision. Let's explore these components and their roles in enabling us to see the world around us. 1. Conjunctiva. The conjunctiva is the membrane covering the sclera (white portion of your eye).

2024年3月16日 · Eye anatomy consists of various parts that make it a prime and important human body part. There are two main types of eyes: compound and non-compound. Compound eyes, found in insects, have many small visual units. Non-compound eyes, like those in mammals, including humans, have one lens and form a single image on the retina.

2023年11月3日 · The inner layer of the eye is formed by the retina, the eye’s light detecting component and the intraoptic part of optic nerve (cranial nerve II). The retina is made up of two separate functional units: the optic and nonvisual parts .

2023年7月24日 · Anatomically, the wall of the eyeball is composed of three layers: the fibrous tunic, the vascular tunic, and the retina. The fibrous tunic is the outermost layer and consists of the anterior cornea and the posterior sclera. The cornea is transparent and covers the colored iris.

Only the innermost layer of the eye, the retina, contains neurons that are sensitive to light and are capable of transmitting visual signals to central targets. Anatomy of the human eye. En route to the retina, light passes through the cornea, the lens, and two distinct fluid environments.

2023年12月26日 · This article explores the anatomy of the human eye, looking at the different structures and their functions. The diagrams show cross sections of the human eyeball; as we journey through the different parts, refer to them to better understand their functions.

Inner Plexiform Layer: Layer consisting of the dendrites of retinal ganglion cells and cells of the inner nuclear layer. Inner Nuclear Layer: Contains 3 types of cells (bipolar, amacrine, horizonal cells) that compute and integrate signals from photoreceptors