SCLERA

The 'sclera' is the opaque (usually white), fibrous, protective layer of the eye containing collagen and elastic fibers.^[1] In children, it is thinner and shows some of the underlying pigment, appearing slightly blue. In the old, however, fatty deposits on the sclera can make it appear slightly yellow.
The sclera forms the posterior five sixths of the connective tissue coat of the globe. The sclera maintains the shape of the globe, offering resistance to internal and external forces, and provides an attachment for the extraocular muscle insertions. The thickness of the sclera varies from 1mm at the posterior pole to 0.3 mm just behind the rectus muscle insertions.

Contents

Diseases and disorders

Additional images

References

External links

Diseases and disorders

Main articles: List of eye diseases and disorders

There are some diseases that cause partial blindness. These diseases produce a dark vertical line through the eye sight which cause less than 100% visibility.

Additional images

References

1. Cassin, B. and Solomon, S. ''Dictionary of Eye Terminology''. Gainesville, Florida: Triad Publishing Company, 1990.

External links

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★ - "Sagittal Section Through the Eyeball"