Soemmering ring
Soemmering Ring
Soemmering Ring (pronunciation: /ˈsʌmərɪŋ rɪŋ/) is a medical term referring to a circular opacity that forms around the periphery of the crystalline lens following cataract surgery. It is named after the German anatomist and physician Samuel Thomas von Soemmering, who first described the condition in the 19th century.
Etymology
The term "Soemmering Ring" is derived from the name of its discoverer, Samuel Thomas von Soemmering, a prominent German physician and anatomist. The word "ring" refers to the circular shape of the opacity that forms around the lens.
Description
The Soemmering Ring is a common postoperative complication of cataract surgery. It occurs when lens epithelial cells left behind after surgery proliferate and migrate, forming a ring of opacity around the periphery of the crystalline lens. This can lead to visual disturbances and may require further surgical intervention.
Related Terms
- Cataract: A clouding of the lens in the eye leading to a decrease in vision. Cataracts often develop slowly and can affect one or both eyes.
- Crystalline lens: The clear lens inside the eye that focuses light onto the back of the eye.
- Lens epithelial cells: These are the cells that make up the outermost layer of the lens. They are responsible for the growth and repair of the lens.
- Phacoemulsification: A modern cataract surgery in which the eye's internal lens is emulsified with an ultrasonic handpiece and aspirated from the eye.
External links
- Medical encyclopedia article on Soemmering ring
- Wikipedia's article - Soemmering ring
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