File name: Anatomy Of Sclera Pdf
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The term sclera is derived from Greek word scleros meaning hard. Test each ear individually. It helps maintain your eye’s shape and protects it from injury. The cornea is oval shaped, with a mm horizontal and a mm vertical diameter []. The orbit is a structure that is formed by several bones. At its anterior boundary the sclera merges with the corneal perimeter at the limbus and extends backward to form an approximate sphere of vertical diameter ~24mm. The axial length of the emmetropic adult human eye is–25mm The sclera, or white of the eye, is strong tissue that wraps around your eyeball. Sclera is an opaque, elastic, and resilient tissue of the eye. Exhale before whispering and use as quiet a voice as possible Anatomy of the eye. Scleral Function, Structure, and Composition. Anteriorly it begins at the The cornea is a transparent structure at the front of the eye. The sclera forms the fibrous coat of the eye and has a white, opaque appearance due to the dense, irregular arrangement of collagen fibrils. The bony cavity or socket that contains the eyeball is called the orbit. The orbit also contains muscles, nerves, blood vessels, and the structures that produce and drain tears. The patient should be instructed to occlude the nontested ear with their finger. The eye is a dynamic organ that is continuously subjected to simultaneous internal and external mechanical forces. It is a powerful refractive surface and a robust barrier that protects the ocular contentsDimensions. a), comprises approximately% of the outer tunic of the human eye [5] Many irritants or health conditions can make the entire sclera change color or cause spots of color Introduction. Scleral anatomy. The sclera Complete the following steps to accurately perform this test: [3] Stand at arm’s length behind the seated patient to prevent lip reading. It can be compared with an incomplete shell comprising approximately% (five-sixths) of the outer coat of the eye. The white of the eye is called the sclera Anatomy of Introduction. The central cornea is spherical; the peripheral cornea is flatter and thicker thanBasic scleral anatomy and function. The sclera, the white part of the eye (Fig.