Sensory System: The Eye

by Geoffrey Meyer, PhD

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    The eye is, well I think, one of the most fascinating organs in the body, and I am going to leave it to the neurophysiologists and the ophthalmologists to explain all the detail physiology and also some of the anatomy of the eye. But in this lecture I am going to describe only major components of the eye. I am going to outline the histological structure and then indicate what functions each of those structures have in the whole function of the eye, giving us vision. At the end of the lecture, you need to understand or at least identify the structures that I am going to talk about. You need to understand the role of the cornea and the lens in focusing light on the retina, and the role of the iris in being a diaphragm and restricting or opening the amount of light going through the pupil to the retina. And I am going to describe the muscles that change the dimensions of the pupil and you need to understand the function of those muscles as well. I am also going to describe the production of the aqueous humor by the epithelium of the ciliary processes and how that aqueous humor circulates through the posterior and anterior chambers of the eye and finally how it's absorbed into the canal of Schlemm. So it is important for you to understand all those processes. You need to understand the role of the retina in particular to be able to identify the rods and the cons and understand a little bit about their functions. And also I want you to be able to understand the cause of presbyopia, which is a condition of ageing of the lens and then also what constitutes the blind spot. Well as I said let us...

    About the Lecture

    The lecture Sensory System: The Eye by Geoffrey Meyer, PhD is from the course Sensory Histology. It contains the following chapters:

    • Sensory System: The Eye
    • The general structure of the eye
    • Iris
    • Ciliary body and processes
    • Lens
    • Choroid and the retina
    • Optic nerve
    • Eyelid

    Author of lecture Sensory System: The Eye

     Geoffrey Meyer, PhD

    Geoffrey Meyer, PhD

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