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Sclera print that page

The sclera (from the Greek skleros , meaning hard [ 1 ] ), also known as the white or white of the eye , is the opaque (usually white, though certain animals, such as horses and lizards, can have black sclera ), fibrous, protective, outer layer of the eye containing collagen and elastic

wikipedia.org | 2011/9/10 7:28:05

Equine vision print that page

Pferdeauge

of light to pass through its center hole, the pupil . [ 4 ] The fibrous tunic consists of the sclera and cornea and protects the eye. The sclera (white of the eye) is made up of elastin and collagen . The cornea (clear covering on the front of the eye) is made up of connective tissue

Glaucoma print that page

Acute_angle_closure_glaucoma

The nerve damage involves loss of retinal ganglion cells in a characteristic pattern. There are many different subtypes of glaucoma, but they can all be considered a type of optic neuropathy . Raised intraocular pressure is a significant risk factor for developing glaucoma (above 21 mmHg or

Diabetic retinopathy print that page

Human_eyesight_two_children_and_ball_normal_vision

Diabetic retinopathy often has no early warning signs. Even macular edema , which may cause vision loss more rapidly, may not have any warning signs for some time. In general, however, a person with macular edema is likely to have blurred vision, making it hard to do things like read or drive

Amaurosis fugax print that page

Prior to 1990, amaurosis fugax could, "clinically, be divided into four identifiable symptom complexes, each with its underlying pathoetiology: embolic , hypoperfusion , angiospasm , and unknown ." [ 2 ] In 1990, the causes of amaurosis fugax were better refined by the Amaurosis Fugax Study

wikipedia.org | 2010/9/26 3:24:17

Kearns-Sayre syndrome print that page

Ragged_red_fibers_in_MELAS

This triad of CPEO, bilateral pigmentary retinopathy, and cardiac conduction abnormalities was first described in a case report of two patients in 1958 by Thomas Kearns, MD., and G.P Sayre, MD. [ 2 ] A second case was published in 1960 by Jager and co-authors reporting these symptoms in a

Fungal keratitis print that page

A fungal keratitis is an 'inflammation of the eye 's cornea ' (called keratitis ) that results from infection by a fungal organism. Keratomycosis is the Latin terminology equivalent of fungal keratitis - it is the fungal infection of the cornea , the anterior part of the eye which covers

wikipedia.org | 2010/9/26 7:10:06

Mammalian eye print that page

known as the tunica fibrosa oculi , is the outer layer of the eyeball consisting of the cornea and sclera . [ 4 ] The sclera gives the eye most of its white color. It consists of dense connective tissue filled with the protein collagen to both protect the inner components of the eye and

wikipedia.org | 2010/9/25 9:20:35

Eye surgery print that page

Augenoperation_1195

The eye is a fragile organ, requiring extreme care before, during and after a surgical procedure. An expert eye surgeon must identify the need for specific procedure and be responsible for conducting the procedure safely. Many university programmes allow patients to specify if they want to

Human eye print that page

A_woman%27s_eye

The smaller frontal unit, more curved, called the cornea is linked to the larger unit called the sclera . The corneal segment is typically about 8 mm (0.3 in) in radius. The sclera constitutes the remaining five-sixths; its radius is typically about 12 mm. The cornea and sclera are connected