Re: Height of glasses lenses affects head position

> Now I agree with the last part about having to turn your head farther
> with smaller frames, but it's probably good exercise, as in yoga.

With age it can get much harder to turn your head. Take a ride with a
typical caddy driver in FL trying to park or change lanes - scary.
They will concede loss of ability to find what goes on to side and
behind. Made worse by the current styles of narrow glasses, esp
limited for those with wide faces.

> Peripheral vision does not need to be in focus to do it's job: detect
> movement and moving objects early. Extreme peripheral vision has worse
> than 20/400 form or shape vision, so it doesn't matter how high your
> vision correction is, you don't need it for peripheral.

Theory, theory, but let's talk about practical life. If that patch of
fuzz in your periphery is a vehicle you need to know it's speed and
direction. After looking carefully then committing to changing a lane
or crossing the street, you may be menaced from either direction in an
instant by a speeder. No longer any time to rubberneck, now I find
myself completely vulnerable with the narrow frames, whereas the old
wraparound types would let me lock on to a clear image 90 degrees to
either side with only a tiny quick movement. For a wide face, it seems
90% of current frames give this problem.

P.S. Another hidden source of maiming and death that is needless result
of style probably has no remedy for the vision customer. The rearview
mirrors of cars are becoming no longer adjustable for their location,
just their tilt. For a tall driver this is directly in the way, and
you may as well paint the central quarter of the windshield black from
top to bottom!

.

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