Human vision, visual correction, and visual science

Archive for May, 2010

Dear Moderator…..

Dear Moderator,  Would you be so kind as to inform me what I said that
caused my post to be ignored/deleted?

Steven

Молодые эротика фото.Домашняя эротика. .
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Sniffles and soft contacts

I just caught a cold, which happens only every few years or so.  If I wear
my softies, will the Renu solution kill the little nasties, or should I just
wear glasses until I’m well?

I seem to remember hearing that you never catch a cold from the same virus
twice.  True?


Cheers,
Bev
==================================================================
"I used to be convinced that MicroSquish shipped crap because they
simply didn’t give a flying fuck as long as the sheep kept buying
their shit. Now, I’m convinced that they really do ship the best
products they are capable of writing, and *that’s* tragic."
                      – John C. Randolph, about MS quality control.

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Wavefront analysis LASIK in the UK?

Are there any places offering this in the UK yet?

A Google search didn’t find any.

Cheers,
Toby

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Corneaplasty – how will it work?

According to http://www.orthok.co.uk/nerfs.htm, orthokeratology isn’t
permanent because the epithelial cells migrate outwards rather than a
consistent change through the whole of the cornea.

The report suggests that the Bowman’s membrane is too stiff to move.

Yet, I understand LASIK works by removing removing stromal cells
underneath the Bowman’s membrane.  Presumably Bowman’s is also altered
in shape by this procedure?

Later on in the report (about 60% down), Charles May is investigating a
technique using enzymes to break down the stroma.  Will this be enough
to change the shape of the Bowman’s membrane (and hence the cornea)?

The middle of the article, "that Bowman’s membrane… bent more with a
high ‘k’ reading than with a low ‘k’ reading."

I presume this is talking about the shape of the reverse geometry lens,
but I have no clue what this means apart from that if anyone can explain
it?

Lastly, I have myopia of -8.0D.  I understand that the image is focused
in front of my retina, but how far in front?  Are we talking 1mm or
10mm?

Thanks.

Dave, http://www.deep-trance.com

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Refractive Surgery Down 10%: Industry Analyst

From a recent Sacramento Business Journal article:

"About 715,000 people are expected to get 1.2 million eyes zapped this
year, according to David Harmon, president of Market Scope, a St.
Louis-based research firm that tracks refractive surgery. That’s down
about 10 percent from 791,000 people and 1.3 million eyes in 2001. "

I believe that the number may be a bit lower than Harmon’s
projections, but his people have been the best predictors and analysts
of refractive surgery volume for many years.

Glenn Hagele
Executive Director
Council for Refractive Surgery Quality Assurance
http://www.usaeyes.org
glenn.hag…@usaeyes.org

I am not a doctor.

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