与 «TRIFOCALS»相关的英语书籍
在以下的参考文献中发现
trifocals的用法。与
trifocals相关的书籍以及同一来源的简短摘要提供其在 英语文献中的使用情境。
1
Fact and Fiction of Healthy Vision: Eye Care for Adults and ...
Just as one needs to be able to walk before learning to run, one needs to
become accustomed to a bifocal before learning to use trifocals. When this
proper sequence is taken, most people say that the trifocals were easier to adjust
to than their ...
2
Spectacles and Other Vision Aids: A History and Guide to ...
The same may be said of trifocals. It is not necessary at this point to delve into the
bifocal-trifocal history or note the design with multiple lenses (see Chapter 21).
Invisible trifocals (or continuous vision lenses) serve from distance to near.
J. William Rosenthal, 1996
3
The Optician Training Manual
There will be a place to record this measurement on your order form. Biofocal
Seg Height Line marked at patient's lower eyelid Remember these steps,
because they will remain the same for measuring for trifocals and progressives
except for ...
4
Kiplinger's Personal Finance
Many people who wear them really need glasses with a three-way stretch —
trifocals. Trifocals have a third lens segment for vital "arm's-length vision," which
bifocals don't touch. An Omaha druggist, for example, caught himself on the brink
of ...
5
Visual Ergonomics Handbook
Computer Trifocals To take computer bifocals one step further, computer trifocals
were developed in the late 1970s. As with the bifocals, lined segments of the lens
separate the distance prescription area at the top of the lens from the computer ...
6
Pencils, Paper, & Prayer: Christian Devotions for Educators
Time for Trifocals Educators are problem solvers. As we work in our classrooms
or work places, we must look at all problems that arise through a set of trifocals.
We can consider our own point of view as well as the points of view of our
students ...
Trifocals: By the time you reach age fifty or so, you may lose most of your ability to
naturally focus on objects that are in the mid-distance range, such as your
computer screen or the name tag of someone at a party. That's when trifocals
come ...
Sandra Gordon, Harvard Medical School, 2001
8
In His Service: Educators Serving God and His Children
Time For Trifocals As we work in our classrooms or work places, we must look at
all problems that arise through our trifocals. We must consider our own point of
view as well as our students' and our parents' as we study these problems and ...
9
Theory And Practice Of Optics And Refraction
Trifocals can be fused or solid trifocals and segment shape is just like bifocals,
e.g. Univis D, E type, concentric or combination trifocals (Fig. 7.13). Progressive
power lenses In a normal human eye, power is gradually increased by the use of
...
10
Melville's Evermoving Dawn: Centennial Essays
14. Manuscript,. Edition,. Revision: Reading. Typee. with. Trifocals. JOHN
BRYANT Melville's first book is really three. Or rather one should say that 150
years after its publication one cannot read Typee thoroughly without reading it
three ways.
John Bryant, Robert Milder, 1997
包含词语«TRIFOCALS»的新条目
找出国内和国际出版社所讨论的内容，以及词语
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IRT free health services underway
No bifocals or trifocals are available in the IRT. All services are provided to individuals from age two and up, with no exceptions. Services begin at 8 a.m. and ... «The Daily Statesman, 七月 15»
Free healthcare services coming in July
No bifocals or trifocals will be prescribed. All services will be provided to individuals from age two and up, with no exceptions. Services will begin at 8 a.m. and ... «The Daily Statesman, 六月 15»
Indiana optometrist marks 65th year in practice
Gemma, who lives on the Westside, had progressive lenses, basically lineless trifocals, and spent years struggling to get his prescription right. Then he saw ... «Fairfield Daily Republic, 四月 15»
What You See Is What You Get: The Full Promise of Seeing Your …
But here's one thing I've noticed: if the living systems lens were actually a pair of glasses, it would be trifocals, offering three distinct views. And what you do with ... «Huffington Post, 二月 15»
He's worked longer than most of his patients have lived
Gemma, who lives on the Westside, had progressive lenses, basically lineless trifocals, and spent years struggling to get his prescription right. Then he saw ... «Indianapolis Star, 一月 15»
Visual aid helps eyeglass-wearing shooters who peer through scopes
Poor eyesight is a big problem for shooters, particularly for rifle shooters who peer through scopes. Wearers of bifocals or trifocals especially know the challenge ... «Minneapolis Star Tribune, 十一月 14»
The gut-wrenching, stomach-turning consequences of international …
I was so exhausted that I could barely hold my head up high enough to watch TV through the middle of my trifocals. I read every book on my nightstand and was ... «Newsworks.org, 九月 14»
Seeing the future: Lenses correct more than just nearsightedness …
Robin Derryberry, 53, owner of Derryberry Public Relations in Chattanooga, wears trifocals, with lenses that are prescribed for computer use. "The top part of my ... «Chattanooga Times Free Press, 八月 14»
Summer Memories: From a front porch, all the world's a stage
I advanced my ability as a jacks player there, which is also where I embarked upon my journey to trifocals by reading long after the sun began to set. «Pittsburgh Post-Gazette, 六月 14»
A grandmother looks back at the Mommy Wars
That's because grandmas see in their rearview trifocals what didn't matter. It didn't matter if they worked full time or stayed at home or found a middle way. «Chicago Tribune, 五月 14»
