The document summarizes the anatomy and structures of the eye. It discusses the study of ophthalmology and various eye tests and procedures. The eyeball is composed of three layers - the outer sclera, middle choroid and inner retina. Six extraocular muscles connect the eyeball to the skull and control eye movement. The eyelids provide protection for the eye and contain eyelashes and glands. The conjunctiva seals off the eyeball in its socket. Tears are produced by the lacrimal gland and drained through lacrimal ducts and the nasolacrimal duct.

1. SPECIAL SENSES: THE
EYE
Created by: Michele Leonard

2. The Study of the Eye
Ophthalmology is the study of the eye
Procedures include:
 Color Vision Test
 Fluorescein Angiography
 Fluorescein Staining
 Visual Acuity Test
 Biepharectomy
 Enucleation

3. Structures of the Eye
 The eyeball
 Muscles of the Eye
 The Eyelids
 Conjunctiva
 Lacrimal Apparatus

4. The Eyeball
The eyeball is composed of three layers:
The Sclera, Choroid, and Retina
 The Sclera which is the outer white layer
including the cornea which retracts light rays
 The Choroid is the middle layer of the eyeball
consisting of: iris, pupil and ciliary
 The Retina is the inner most layer of eyeball
containing sensor receptor cells

5. The Muscles in the Eye
 Six muscles that connect the eyeball to skull,
they are four rectus and two oblique muscles
 Rectus muscles are straight puling the eye up
and down side to side.
 The oblique muscles are on an angle and
assist with diagonal eye movement.

6. Eye Anatomy

7. Eyelids
 Eyelids provides protection from foreign
particles and injury
 The eyelids consist of eyelashes and
sebaceous glands that secrete lubricating oil
onto the eyeball

8. Eyelid Anatomy

9. Conjunctiva
 The conjunctiva is the eye mucous membrane
and serves as protection for the eye by sealing
off the eyeball in the socket.

10. Lacrimal Apparatus
 The lacrimal gland is located in the outer
upper corner of each eyelid.
 Tears
 Lacrimal ducts
 Nasolacrimal duct

11. Image