-
Tilted Bifocal Lens, in 1936, a
method of
grinding two
prescriptions simultaneously on that
Tilted Bifocal Lens, and in 1951, the
Cataract Bifocal Lens...
- in his
influential PhD thesis. It is
sometimes also
referred to as the "
bifocal tensor". As a
tensor it is a two-point
tensor in that it is a bilinear...
- inventor.
Among his many
creations were the
lightning rod,
Franklin stove,
bifocal gl****es and the
flexible urinary catheter. He
never patented his inventions;...
-
Progressive bifocal chorioretinal atrophy, also
known for its
abbreviations PBCRA or ****B, is a rare,
slowly progressive,
autosomal dominant syndrome...
- The
first Varilux lenses'
surface structure was
however still close to a
bifocal lens, with an upper, aberration-free half of the
surface for far vision...
- the
distance can be
clearly viewed over the top of half-eye readers. A
bifocal is a lens with two sections,
separated by a line (see
image to the right)...
-
Thermonectus marmoratus have
incredibly complex eyes that
resemble a camera's
bifocal capabilities. The
beetle has a
total of 12 eyes (six eyes on
either side...
-
evidence of
effectiveness of
bifocal lenses and
recommends it as the
method for "myopia control". In some studies,
bifocal and
progressive lenses have...
-
Observatory Data Repository. 2002. Whitney,
Scott (1 July 2002). "The
Bifocal World of John ****: This
Niuean Writer and
Painter Is
Still Searching for...
-
myopes might require two
pairs of gl****es (one for distance, one for near),
bifocal, or
progressive lenses. However,
their myopia does not
disappear and the...
