Subject: The scoop on Jacoby's glasses
From: bobg+@andrew.cmu.edu (Robert Steven Glickstein)
Date: 1990-05-10, 12:08
Newsgroups: alt.tv.twin-peaks

Several days ago I posted a hypothesis that Jacoby is color-blind, based
on the odd glasses he wears.  I first learned about such glasses from
Nathaniel Borenstein.  Here's what he had to say about it after I asked
him for an elaboration on the subject:

Excerpts from private correspondence: 10-May-90 Re: Color blindness
Nathaniel Borenstein

> > For certain kinds of red-green color-blindness, it is possible to obtain
> > substantial correction to the color vision by placing a red contact lens
> > (known generally as an Xchrome lens, I believ) in the less dominant eye.
> >  I had such contacts for several years, and the correction was
> > substantial.  However, this correction is only available in hard
> > contacts, to which I was ultimately unable to adjust, so I had to stop
> > wearing them.

> > I then had a pair of glasses specially made which had a dark red lens in
> > the less dominant eye.  The frames were mountaineering frames which had
> > eye shades around the sides, which prevented stray light from bypassing
> > the colored lens and ruining the effect.  The glasses worked about half
> > as well as the contacts in terms of color correction, but they looked
> > REALLY weird.

> > Your Dr. Jacoby might indeed have funny glasses for such a purpose, but
> > I have not heard of anyone using a blue lens with a red lens. 
> > Typically, one lens is red and the other is clear.

> > Meanwhile, I recommend that all your color-blind correspondents on the
> > net look into Xchrome lenses.  They aren't effective for everyone, but
they were awesomely effective in my case.  

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