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multifocal
(redirected from Progressive lenses)

   Also found in: Encyclopedia, Wikipedia 0.01 sec.
multifocal /mul·ti·fo·cal/ (mul″te-fo´k'l) arising from or pertaining to many foci.
mul·ti·fo·cal (mlt-fkl)
adj.
Relating to or arising from many foci.

Multifocal
Having many focal points. In progressive multifocal leukoencephalopathy, it means that damage caused by the disease occurs at multiple sites.

multifocal
[-fō′kəl]
Etymology: L, multus + focus, hearth
characterized by more than two ectopic foci that pace the heart. The foci may be atrial or ventricular.

multifocal [mul″tĭ-fo´k'l]
arising from or pertaining to many sites or locations.

multifocal
arising from or pertaining to many foci.

multifocal cystic iris separation
separation of the posterior iridal epithelium of aged dogs.
multifocal intramural myocardial infarction
a result of hyalinization of small, intramural, coronary arteries in old dogs. Called also MIMI.
multifocal symmetrical myelinolytic encephalopathy
a fatal disease of Limousin and Simmental calves, beginning at about a month of age with blindness and dysmetria (Limousins) or at 5-8 months of age with signs of ataxia and weight loss (Simmentals).
multifocal syndrome
neurological signs indicating more than one lesion site. Usually seen with infectious diseases of the brain or degenerative storage diseases.

multifocal
Multicentric adjective Having many points of origin, as in a multifocal cancer with a primary tumor and scattered satellites of cancer in surrounding tissues


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In recent years lenses have evolved even further beyond what even the great mind of Benjamin Franklin could have imagined - progressive lenses these days have any number of different correction properties as you proceed from the top of the lens down to the bottom.
If you are not comfortable wearing bifocals, you can opt for progressive lenses.
The high-tech lens is known as C[pounds sterling]FreeFormC[yen] and is custom-made to suit the patientCOs visual needs especially when it comes to progressive lenses, says Jim Kounnas, Senior Optometrist and CEO of Space Frontiers Ltd.
 
 
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