ocular anatomy

OCULAR ANATOMY

Ankita sharma

THE MOST IMPORTANT ANATOMICAL COMPONENTS OF EYES ARE :CONJUNCTIVACORNEACRYSTALLINE LENSEXTRAOCULAR MUSCLESIRISMACULA OPTIC NERVERETINAVITREOUS HUMOR

OVERVIEW OF EYE ANATOMY

ANATOMY OF EYEANATOMY OF EYE

PUPIL

Black looking aperture (black due to the absorbing pigment of the retina )Allows the light to enter to the eye

THE OUTERMOST LAYER OF THE EYE BALL

THE WHITE AND OPAQUE PART OF EYEBALL

SCLERA

IRIS COLORED, RING MEMBRANE GIVES COLOUR TO THE EYE CONTROLS THE SIZE OF THE PUPIL DEPENDING ON THE AMOUNT OF LIGHT ENTERING INTO THE EYE

THREE LAYERS OF EYE

EXTERNAL LAYER – SCLERA AND CORNEAINTERMEDIATE LAYER- ANTERIOR (IRIS AND CILIARY BODY ) AND POSTERIOR (CHOROID )

INTERNAL LAYER – RETINA ( THE SENSORY PART )

CORNEA At the front of eyeball , sclera continues

into cornea . Dome-shaped transparent part of eyeball

Rays of light from outside world passes through cornea before passing through the lens

CHOROIDMiddle layer of the eyeball.

located between sclera and retina .

Provides nutrients and oxygen to the outer surface of the retina.

ANTERIOR CHAMBER The space between cornea and lens

Filled with aqueous humor

VITREOUS CHAMBER

Largest chamber of the eye Between lens and retina Filled with the amorphous somewhat gelatinous material of the vitreous body

RETINA SENSORY PART OF EYE

OPTIC NERVE Second of several pairs of cranial nerves The job of this nerve is to transfer visual information from retina to visual centre of brain via electrical impulse

The optic nerve made up of ganglion cells or nerve cell

EXTRAOCULAR MUSCLES

HOW DOES EYE WORK ?

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