Re: [M]: [OT] Laser surgery
| Subject: | Re: [M]: [OT] Laser surgery |
| From: | Dan Dickerson |
| Date: | Sat Jan 01 11:55:59 2000 |
Chuck Brown wrote:
>
> Have any of you had any experience with laser surgery to correct vision?
> Im thinking it may be a good solution to the observing with eyeglasses
> problem, but Id like to know if there are negatives that impact
> telescope use. Im pretty well advised on the general risks and expected
> results, but would like to hear from astronomers with real life
> experiences.
>
I know that this has been hashed out in SAA, but I thought that it
deserves a quick response here.
The main problem that I have heard about is that the maximum diameter of
the cut that the laser can make is about 5mm. If your pupil expands
beyond
or near this, then your eye will end up with a lens that has multiple
focal lengths. This is the cause of the multiple images and halo effects
that people talk about at night. My sister-in-law had it done, but
since she is not an astronomer, it does not bother her too much. I
am waiting for them to perfect a system that covers a larger area of
the cornea.
Dan
>
> Have any of you had any experience with laser surgery to correct vision?
> Im thinking it may be a good solution to the observing with eyeglasses
> problem, but Id like to know if there are negatives that impact
> telescope use. Im pretty well advised on the general risks and expected
> results, but would like to hear from astronomers with real life
> experiences.
>
I know that this has been hashed out in SAA, but I thought that it
deserves a quick response here.
The main problem that I have heard about is that the maximum diameter of
the cut that the laser can make is about 5mm. If your pupil expands
beyond
or near this, then your eye will end up with a lens that has multiple
focal lengths. This is the cause of the multiple images and halo effects
that people talk about at night. My sister-in-law had it done, but
since she is not an astronomer, it does not bother her too much. I
am waiting for them to perfect a system that covers a larger area of
the cornea.
Dan
