-
Bifocals are eyegl****es with two
distinct optical powers correcting vision at both long and
short distances.
Bifocals are
commonly prescribed to people...
-
rounded bifocals and D
segment bifocals, that are
selected for
functional differences as well as the
visual demands of the patient.
Bifocals allow people...
-
plastic aviators. Adjustable-focus eyegl****es
might be used to
replace bifocals or trifocals, or
might be used to
produce cheaper single-vision gl****es...
- to
adjust them for
desired distance or prescription, or both.
Current bifocals and
progressive lenses are static, in that the user has to
change their...
- Gl****es
prescribed to
correct presbyopia may be
simple reading gl****es,
bifocals, trifocals, or
progressive lenses.
People over 40 are at risk for developing...
-
granted patents on two
forms of
bifocals which become commercially standardized as the "cemented" and "perfection"
bifocals. Both had the
serious faults...
-
March 2016). "Page Two: 'I Got Vision, and the Rest of the
World Wears Bifocals'". The
Austin Chronicle.
Retrieved 23
March 2021. Brody,
Richard (30 July...
-
focus on
close objects) is ****ociated with Down syndrome,
which may mean
bifocals are indicated. In keratoconus, the
cornea progressively thins and bulges...
- the water. Its
aquatic larval stage was the
first ever
recorded use of
bifocals in the
animal world. The
beetle uses in its prin****l eyes two retinas...
-
archaeologist André Marek; and his son Chris,
discover a lens from Johnston's
bifocals and a note
begging for help,
although both date over 600
years old. ITC...
