Old 09-08-15 | 09:39 AM
  #28  
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Jim from Boston
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Originally Posted by Eric S.
"I thought the same thing until I spent some significant time fiddling with it, adjusting it and training myself in how to use it."

My issue is with eye focus. I need to wear my prescription glasses while riding, but my eyes can't focus on something a few inches from my face with them on.

Originally Posted by noglider
Have you tried it? I also have presbyopia and can't focus up close any more. The take-a-look mirror works great for me.

Originally Posted by Leisesturm
The armchair physicist in me wonders if the eye is actually focused on the mirror, or instead, at the imaginary focus of the object in the mirror. I suspect the latter, from actual experience. Non-issue in other words.
Originally Posted by Jim from Boston
I’ll second that opinion, if just for the record…

Originally Posted by Jim from Boston
...a most spontaneous and unanticipated hazard [paceline crash], and I think a head mounted mirror offers the quickest and least head/eye movement to assess the rearward traffic situation, compared to handlebar mirrors
…one consideration, no matter what kind of mirror, is to wear two, right and left.
Wearing eyeglass mounted mirrors is one of the few advantages of having to wear prescription eyeglasses at all.

I can focus on the image in both mirrors instantly (though not simultaneously), as easily as looking straight ahead. Probably the main delay is locating the mirror while looking straight ahead, easy when it’s so close to your eye (though a possible hazard in a crash, as [MENTION=40124]ItsJustMe[/MENTION] can attest).

Last edited by Jim from Boston; 09-08-15 at 09:44 AM.
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