Lacrimal Gland - A small, almond-shaped gland located in the upper outer region of the orbit (eye socket) that produces tears. These tears keep the eye moist, help flush out debris, and contain enzymes that protect against infection., Sclera - The white, opaque outer layer of the eyeball. It is connected to the cornea at the front and extends to the optic nerve at the back.  , Cornea - The clear, dome-shaped surface that covers the front of the eye. It functions as the eye's primary refractive surface, helping to focus light onto the retina. It also acts as a barrier against dirt, germs, and other harmful particles., Choroid - A layer of blood vessels and connective tissue between the sclera and the retina. It provides oxygen and nutrients to the outer layers of the retina and helps regulate the temperature and volume of the eye., Retina - The light-sensitive layer of tissue at the back of the eye. It contains photoreceptor cells (rods and cones) that convert light into electrical signals, which are then transmitted to the brain via the optic nerve, enabling vision. It is crucial for detecting light and colour and for processing visual information.,

The Human Eye

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