vision - The Eye Skip accessory structures go right to...

Info icon This preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
The Eye Skip accessory structures, go right to eyeball 3-layered structure (layers called TUNICS) Hollow inside, divided into two large spaces (CAVITIES) (Filled with Aqueous Humor) (Filled with Vitreous Humor) 1. 3. 2. Lens
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
The Eye Items to note: 1. Cornea 2. Iris / Pupil 3. Lens 4. Ciliary Body 5. Optic disc 6. Optic nerve
Image of page 2
Vision Part 1: Focusing Light To reach retina, light passes through the: Cornea Aqueous humor Lens Vitreous humor Cornea and lens focus focus light onto the retina Air/water interface at cornea bends light (refraction) Lens dynamically adjusts its shape to fine-tune focus (accommodation)
Image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Vision Part 1: Focusing Light Accommodation by lens For objects far away , ciliary muscles relaxed , lens flat flat For objects up close , ciliary muscles contracted , lens round round
Image of page 4
Vision Part 1: Focusing Light Problems with light focusing nearsighted nearsighted farsighted farsighted Eyeball too long or or Cornea too round Cornea too round Eyeball too short Eyeball too short or or Cornea too flat Cornea too flat
Image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Vision Part 1: Focusing Light LASIK – Laser Assisted In Situ Keratomileusis Precise method of reshaping cornea to correct refractive issues
Image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern