What is eye physiology?
Eye physiology is the study of physiological processes involving the eye and all related structures. This science is based on chemistry, physics and anatomy. It describes the mechanism that the human body uses to interpret light in a way that helps in understanding the world.
The eye and all the processes associated with it are complex, so the term eye physiology is at least quite wide. Physiology, from Lain's term, can be considered how things work. If anatomy is what it is made of, physiology is what these things really do. For example, eye anatomy can describe a pupil, cornea or other structures, while eye physiology would articulate how the lights of the lights transform into sight. Viewing the mountains, avoiding the caused object, digestion of physical attraction - the each of these common activities would not be possible without the correct physiological function of the eye. Simply put, light is made up of small particles that bounce off objects and eyes. The sensory is then picked upby cells and transformed into electrochemical impulses later interpreted brain.
The best way to have a functional perception of eye physiology is to compare it to a more tangible and well -known object: a camera. The cornea or outside the eye can be considered as a camera lens and is responsible for about 60% light focusing. Another lagging of partially focused light is through the pupil and iris, where their properties similar to the aperture control the volume of light that allows you to pass. In dark areas, this volume is relatively high, while bright rooms can cause the opening, resulting in a change in the size of the pupil.
This is a subtle light eventually reaches the structure on the back of the eye known as the retina, where the light and cones specific to light convert their acceptance of light into the pulse that travels to the back of the brain. Cones pick up in color light while the rods are more or less leHer and dark receptors. The level of their excitability by light changes the impulses they send, thus affecting the image that is truly seen or interpreted by the brain.