| Ragnar 2006-04-19, 1:25 am |
| You conveniently left this bit out...
"no significant contrast sensitivity differences were observed "
Also, although that article was published 4 years ago, ti was actually
written in 2000.
On 18 Apr 2006 07:09:08 -0700, "kirk.carver@gmail.com"
<kirk.carver@gmail.com> wrote:
>I don't know anything about the German situation. or the impetus behind
>Ace's post. I do know that loss of contrast sensitivity is a proven
>result of LASIK/PRK, especially with broadbeam lasers and in mesopic
>conditions:
>
>http://www.journalofrefractivesurge....asp?thing=1894
>
>"Photorefractive keratectomy can induce significant reductions in
>contrast sensitivity under mesopic conditions, even though the photopic
>contrast sensitivity function is normal. [J Refract Surg 2002;18:9-13]
>"
>
>The fact that laser manufacturers strive for smoother ablations with
>spot lasers and wavefront should be a clear indicator there is a
>contrast issue of at least medium significance. They have a financial
>obligation to maintain, and wouldn't spend research money to improve
>their system if there wasn't a benefit to be gained in the end product.
|