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  1. Class Notes
    https://classnotes.org.in › light › human-eye

    Human Eye - Class 8, Light - Class Notes

    • The eye enables us to see the various objects around us. The main parts of the human eye are : Cornea, Iris, Pupil, Ciliary muscles, Eye lens (which is a flexible convex lens), Retina and Optic nerve.… See more

    Rods and Cones

    The retina of our eye has a large number of light-sensitive cells. There are two kinds of light-sensitive cells on the retina : rods and cones. (1) Rodsare the rod-shaped cells present in t… See more

    Class Notes
    Blind Spot

    At the junction of optic nerve and retina in the eye, there are no light sensitive cells (no rods or cones) due to which no vision is possible at that spot. This is called blind spot. Blind … See more

    Class Notes
    Persistence of Vision

    If we look at a bright object and then close our eyes, the image of the object will remain in our eyes for very short duration. Thus, the image formed on the retina of the eye does n… See more

    Class Notes
    Range of Vision of A Normal Human Eye

    The farthest point from the eye at which an object can be seen clearly is known as the far point of the eye. The far pointof a normal human eye is at infinity. The nearest point up to whic… See more

    Class Notes
    What is myopia & how can it be corrected?
    (a) Myopia is the defect of the eye vision due to which a person can see the near by objects clearly but cannot see the far objects so distinctly. -due to the elongation of the eyeball. -due to decrease in the focal length of the eye lens. Myopia can be corrected by using a concave lens of suitable focal length in the spectacles of such a person.
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