TomAiello 26
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LASIK fixed your night vision? I have terrible night vision and all of the doctors I've talked with say LASIK has no effect on it whatsoever as lack of night vision is caused by lack of cones/rods (one or the other don't remember offhand)... Did you have really bad night vision?
-- (N.DG) "If all else fails – at least try and look under control." --
-- (N.DG) "If all else fails – at least try and look under control." --
LouYoung 0
This is a bit off the original topic, but I'll reply anyway.
My bad night vision was caused by my astigmatism. An astigmatic eye is oblong, meaning a cross section of the lense would be oval shaped instead of circular.
When you're in bright light and your pupil is very small, you're only using a small portion of your lense to focus light. At night, when your pupil is large you use more of your lense, and if your lense is oblong and you're nearsighted, your nearsightedness gets worse because you're using a larger portion of your oddly shaped lense.
My night vision was better with contacts because they were made for my astigmatism, but the contacts caused very bad starbursting.
The Lasik obviously took into account the astigmatism and reshaped my lense so that it's now circular instead of oval, so when the light gets low and my pupil gets larger the quality of my vision doesn't change. I've heard that Lasik can cause starbursting at night, but for me it hasn't, at least compared to the terrible bursting I got from my contacts.
So when those two items are combined, my night vision was greatly improved by the Lasik.
My bad night vision was caused by my astigmatism. An astigmatic eye is oblong, meaning a cross section of the lense would be oval shaped instead of circular.
When you're in bright light and your pupil is very small, you're only using a small portion of your lense to focus light. At night, when your pupil is large you use more of your lense, and if your lense is oblong and you're nearsighted, your nearsightedness gets worse because you're using a larger portion of your oddly shaped lense.
My night vision was better with contacts because they were made for my astigmatism, but the contacts caused very bad starbursting.
The Lasik obviously took into account the astigmatism and reshaped my lense so that it's now circular instead of oval, so when the light gets low and my pupil gets larger the quality of my vision doesn't change. I've heard that Lasik can cause starbursting at night, but for me it hasn't, at least compared to the terrible bursting I got from my contacts.
So when those two items are combined, my night vision was greatly improved by the Lasik.
460 0
That sucks that your night vision was terrible with contacts. However, I've had no such difficulties wearing contacts.
Let's see, the suggestions have been:
1) jump without eye protection with your contacts and hopefully they won't pop out too often, especially if your vision is very bad.
2) wear polyacrylic (hard plastic) goggles that cost $10 and provide safety to the eyes especially when landing in brush or trees. Just go to Academy.
3) spending $1000 or so or on an experimental eye "surgery." (Just get rid of your contacts or jump with glasses which provide little peripheral vision) Guess what? A new nonpermanent eye correction (popular in Europe) surgery is near full FDA approval.
Let's see, the suggestions have been:
1) jump without eye protection with your contacts and hopefully they won't pop out too often, especially if your vision is very bad.
2) wear polyacrylic (hard plastic) goggles that cost $10 and provide safety to the eyes especially when landing in brush or trees. Just go to Academy.
3) spending $1000 or so or on an experimental eye "surgery." (Just get rid of your contacts or jump with glasses which provide little peripheral vision) Guess what? A new nonpermanent eye correction (popular in Europe) surgery is near full FDA approval.
Looks like a death sandwich without the bread - Steve Deadman Morrell, BASE 174
Just to add
as far as I am aware -
1. Losing a contact lens in these conditions is a rare occurence, but obviously the consequences can be pretty disastrous !!! No vision = interesting landing !!!
2. Wearing polycarbonate safety glasses or goggles is one of the safest options due to the mechanical as well as optical benefits that they provide. The downside is that they look like protective eyewear and someone might question that. But then again oakleys use polycarbonate lenses and they look prettycool. But on a cold night any glasses / goggles can fog up - which can be a problem.
3. Lasik or some similar method of surgery (PRK etc) can be the best option of all PROVIDING IT IS SUCCESSFUL. To better understand the potential risks of any surgery it is worth asking around before rushing off to have it done.
There are many successful lasik and eye operations every day, however it is worth noting that when they go wrong the results can be pretty disastrous. I have seen people who have increased light sensitivity post-surgery. I also worked in places where there were many contact lens patients using just 1 contact lens where they'd had lasik or similar on one eye and would not have the second eye done.
In all fairness the procedures are practised in increasing numbers and the technology gets better and better so the risks are getting ever smaller, but in truth the risk will never be 0%.
There was a famous incident with a climber years ago who had laser surgery and his cornea was thinned to such an extent that it ruptured at altitude and left him blinded in very inhospitable conditions.
So before deciding to go for surgery - just make sure you have all the facts and then make an informed choice.
I am no expert by any stretch of the imagination and would suggest that if you are interested in lasik or any procedure that you seek suitable information from people qualified to give you unbiased advice.
The british college of optometrists (i think) offers such advice and you can find them on the net.
Anyway what ever you choose - be safe !!!
as far as I am aware -
1. Losing a contact lens in these conditions is a rare occurence, but obviously the consequences can be pretty disastrous !!! No vision = interesting landing !!!
2. Wearing polycarbonate safety glasses or goggles is one of the safest options due to the mechanical as well as optical benefits that they provide. The downside is that they look like protective eyewear and someone might question that. But then again oakleys use polycarbonate lenses and they look prettycool. But on a cold night any glasses / goggles can fog up - which can be a problem.
3. Lasik or some similar method of surgery (PRK etc) can be the best option of all PROVIDING IT IS SUCCESSFUL. To better understand the potential risks of any surgery it is worth asking around before rushing off to have it done.
There are many successful lasik and eye operations every day, however it is worth noting that when they go wrong the results can be pretty disastrous. I have seen people who have increased light sensitivity post-surgery. I also worked in places where there were many contact lens patients using just 1 contact lens where they'd had lasik or similar on one eye and would not have the second eye done.
In all fairness the procedures are practised in increasing numbers and the technology gets better and better so the risks are getting ever smaller, but in truth the risk will never be 0%.
There was a famous incident with a climber years ago who had laser surgery and his cornea was thinned to such an extent that it ruptured at altitude and left him blinded in very inhospitable conditions.
So before deciding to go for surgery - just make sure you have all the facts and then make an informed choice.
I am no expert by any stretch of the imagination and would suggest that if you are interested in lasik or any procedure that you seek suitable information from people qualified to give you unbiased advice.
The british college of optometrists (i think) offers such advice and you can find them on the net.
Anyway what ever you choose - be safe !!!
QuoteI'm pretty sure this one has been thoroughly researched already.
I know - i guess I was just bored !!!
Tom@SnakeRiverBASE.com
SnakeRiverBASE.com
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