1 / 14

Understanding the Human Eye: Structure, Function, and Light Physics

This chapter delves into the human eye, exploring its anatomical structure, functionality, and the physics of light. It covers the roles of different eye components such as the cornea, lens, and retina while explaining critical concepts like image formation and optical power. The chapter also addresses common vision problems like presbyopia and astigmatism, alongside the rich variety of photoreceptors found in the retina. With insights into eye movement and the wavelength of light, this text serves as a comprehensive review of ocular physics and anatomy.

edith
Télécharger la présentation

Understanding the Human Eye: Structure, Function, and Light Physics

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Chapter 2 The Human Eye

  2. Physics Review • Light: Electromagnetic radiation • Wavelength (nm) determines quality • Why light? • Reliable • Prevalent • Informative

  3. The Head • Eye placement: • Lateral vs. Frontal • Skull: Orbit • Eye Movement • 6 extra-ocular muscles: • Conjugate • Vergence • Eyelids • Tears

  4. Eye Function • What is an image? • Image formation = reversing light divergence • Optical Power of… • 1) cornea: 2/3rds of optical power • 2) lens: accommodation

  5. Eye Structure • Three layers: • Protecting: Fibrous Tunic • Nourishing: Vascular Tunic • Detecting: Retina

  6. Fibrous Tunic • Sclera • Cornea

  7. Out of Focus

  8. Problems with Lens • Presbyopia: • Astigmatism

  9. Vascular Tunic • Choroid • Pigment epithelium • Anterior Chamber • Aqueous humor • Lens and pupil

  10. Glaucoma

  11. Retina • Photoreceptors • Landmarks: • Macula • Optic Disk

  12. Photoreceptors Paul Bunyan Ate His Rice

  13. Opsin Photopigments • Two components • Opsin: large protein, 3 types • Retinal (vitamin A) • Phototransduction Retinal

  14. Wavelength Sensitivities

More Related