On 9/16/06 9:30 AM, in article
(E-Mail Removed). com,
"(E-Mail Removed)" <(E-Mail Removed)> wrote:
> Wavefront LASIK and surface retreatments are a hoax. Once you rip up a
> flap or remove the epithelium, the wavefront map is no longer
> applicable to that eye. No wonder so many patients are made worse by
> wavefront retreatments.
>
> What do you think, Otis?
>
Not coming from the optometric profession, whenever I hear about wavefront
correction, I think interferometry. When I think of interferometry, I think
of measuring optical error to a fraction of a wavelength such as 1/10 wave
or less. I doubt that eye surfaces are so stable or reproducible so that
measurement of error to less than a wavelength or two is truly meaningful.
Thus, although you truly are correcting the wavefront, use of the term
"wavefront" IMPLIES working at an unrealistically high precision when vision
is involved.
If there is a hoax, it lies in puffery that makes it sound better than it
really is.
Bill
-- Fermez le Bush