Cornea: The transparent front part of the eye that covers the iris, pupil, and anterior chamber.
Pupil: Determines how much light is let into the eye.
Lens: Focuses the light rays that pass through it in order to create clear images of objects that are positioned at various distances.
Iris: Controls the size of the pupil.
Anterior Chamber: The fluid-filled space inside the eye between the iris
Ciliary body: The part of the eye that connects the iris to the choroid.
Sclera: The white outer layer of the eyeball
Choroid: The pigmented vascular layer of the eyeball between the retina and the sclera
Retina: The nerve layer that lines the back of the eye, senses light, and creates impulses that travel through the optic nerve to the brain.
Macula: Is a small spot where vision is keenest in the retina
Optic disc: Is the point of exit for ganglion cell axons leaving the eye.
Optic nerve: Is transmitting impulses to the brain from the retina at the back of the eye.
Conjunctiva: Is an inflammation or infection of the transparent membrane that lines your eyelid and covers the white part of your eyeball.
Why is this important?
This important due to the optics unit being about the use of mirrors to see images and the eye is the most important mirror that the human race has. It is also important because it allows us to see how it functions and see how glasses fix near and far sightedness.
When surveyed about the five senses – sight, hearing, taste, smell and touch – people consistently report that their eyesight is the mode of perception they value (and fear losing) most. Despite this, many people don’t have a good understanding of the anatomy of the eye, how vision works, and health problems that can affect the eye.
This is a good resource due to it having many links that help identify the parts of the eye and what there functions are in helping the eye create images.
The eye is protected from mechanical injury by being enclosed in a socket, or orbit, which is made up of portions of several of the bones of the skull to form a four-sided pyramid, the apex of which points back into the head.
This is a good resource because of the in-depth amount of information that it has on the amazing features of the human eye and how it fits all together to function properly.