PPT-12.3 Lens Technologies and the Human Eye

Learning Goals Learn how the human eye works and the common problems with our eyes Learn about various lens technologies Video The Human Eye The Human Eye The Human Eye Lens ability to refract light and allow the eye to focus. http://. medilinks.blogspot.com. /2011/09/. seq. -paper-of-eye-. rawalpindi. -. medical.html. http://www.missionforvisionusa.org/anatomy/uploaded_images/GrosASlabMfV-702936.jpg. 1. Epithelium (cornea. The physics of light. http://commons.wikimedia.org/wiki/File:Eye-diagram_bg.svg . Light. Light. Particles known as photons. Act as ‘waves’. Two fundamental properties. Amplitude. Wavelength . Frequency is the inverse of wavelength. Reproductive Technologies. In vitro fertilization. In vitro fertilization (IVF) is an assisted reproduction technology used when natural fertilization methods are unsuccessful.. IVF is a scientific process where a female egg is fertilized my a male sperm externally in a glass dish.. pg. . 506 - 511. The Eyeball. The Eye by Bill Nye. Iris. : coloured part of the eye that opens and closes to let in more or less light. In the centre you find the pupil. Pupil. :. . opening where light enters the eye. We will look at the following parts:. Take notes on this page…. CORNEA . (clear lens in front of eye). transparent covering of the front of the eye. Allows for the passage of light into the eye and functions as a fixed lens.. Iris. Pupil. Cornea. Lens. Optic nerve. Retina. YouTube: Anatomy and function of the eye. YouTube: Bill Nye – The Eyeball. Videos to watch. Seeing. F. ’. F. object. image. Retina. d. o. d. i. f. Focusing on objects. We will look at the following parts:. Take notes on this page…. CORNEA . (clear lens in front of eye). transparent covering of the front of the eye. Allows for the passage of light into the eye and functions as a fixed lens.. The Human Eye. The Human Eye. C. ontains :. Cornea. Lens. Ciliary Muscles. Suspensory Ligaments. Iris. Aqueous Humor. Vitreous Humor. Sclerotic. Retina. Rods. Cones. Optic Nerve. . . Cornea Lens . We will look at the following parts:. CORNEA . (clear lens in front of eye). transparent covering of the front of the eye. Allows for the passage of light into the eye and functions as a fixed lens.. . How the structural components of the eye contribute to the overall function of observing the visual world. Objectives. . Identify strategies (mechanisms) employed in the eye to provide nutrients and structural support without. The Human Eye 14.2 – Pages 449-455 A) Types of Vision Monocular Binocular Peripheral Tunnel Vision B) Layers of The Eye Sclera (A) : Outer white part of the eye  tough Resists punctures, is under fluid pressure from below http://commons.wikimedia.org/wiki/File:Eye-diagram_bg.svg . Light. Light. Particles known as photons. Act as ‘waves’. Two fundamental properties. Amplitude. Wavelength . Frequency is the inverse of wavelength. /2011/09/. seq. -paper-of-eye-. rawalpindi. -. medical.html. http://www.missionforvisionusa.org/anatomy/uploaded_images/GrosASlabMfV-702936.jpg. The Human Eye - Structure. 1. Epithelium (cornea). 2. . Eye anatomy. lens.  is a transparent proteins called crystallin. Why use the extra lens?. Astigmatism.  . Look far . . bulged. Look far .  . extended. Farsightedness.  (hyperopia). Nearsightedness.