Reducing glare in KC lenses

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When we ask for glare reduction, is that what we really want?

I want glare reduction.
6
75%
I want UV protection.
1
13%
I want things to look darker.
1
13%
 
Total votes: 8

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GarethB
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Reducing glare in KC lenses

Postby GarethB » Sat 18 Jun 2005 8:30 pm

Dear All,

A question was asked at the confrence today regarding the possibility of a lens that adresses the issue of glare. This has got me thinking about the possibility of combining several existing technologies to make a new application. This would probably mean different organisations and specialist coming together.

First though, it would help if some questions were answerd. This is to establish what is most important. This may not be feasable using my idea, but out of failure often comes success!

I do not know how to put this as a secondary poll, but if this were to result in a lens that left your eye looking a funny colour, would you be botherd?

Thanks

Gareth

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John Smith
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Postby John Smith » Sun 19 Jun 2005 8:52 am

Hi Gareth,

I thought about the "want things to look darker" option, but decided that I can cope with ambient light most of the time; but it's the sudden glare that can be painful at times.

As to your eye looking a different colour - that may be a good thing! At least you wouldn't have to keep on explaining to people that you look normal, but there is something wrong!
John

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Sweet
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Postby Sweet » Sun 19 Jun 2005 10:50 am

Hmmm im slightly confused here on what people mean about glare? We arent talking about halos around light are we? But about sudden brightness?? Hmmm i really dont have a clue! LOL!!

My lens is tinted blue, as i have blue eyes, but even without wearing it, i dont seem to have this glare problem. If sudden brightness is what i think you mean?

I actually seem to need a lot of bright light to see, although i do drive very well by night as well. So maybe i just need someone to explain what this is as im lost!

Thanks!!

Sweet X x X
Sweet X x X

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GarethB
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Postby GarethB » Sun 19 Jun 2005 7:44 pm

Primarily I am thinking of changes in sudden brightness. Halos are a harder issue, but it might be reduced glare might reduce the halo affect.

First I need to see if my idea is technically possible, so when I get back to work on Monday I will be sending off some e-mails to some specialists in plastics.

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Hannah Pye
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glare

Postby Hannah Pye » Mon 20 Jun 2005 5:35 pm

It the contact lenses where a darker colour colour to take out the glare it would be a good thing. I certainly wouldnt be bothered by the colour. The darker the better !

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Rob Armstrong
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Postby Rob Armstrong » Tue 21 Jun 2005 12:15 am

When I used to wear my lenses, I knew what a pain glare was. Winter mornings with the low sun meant car journeys spent looking down at my feet, unable to look out at the world because my eyes would sting (No I wasn't driving!)

Was also a problem initially post-graft too, but not so much now.

As for funny coloured lenses, my eyes were wide open and red with them in, and screwed up without them, so funny colours is not a worry!

I have had both brown and blue lenses and noticed no obvious change in the colouration of my vision either.

For making life easier, it would have to be glare reduction by far in my opinion. UV protection is also important, as our eyes have enough cell damage as it is, but we can always solve this with sunglasses when UV levels are high, which would also answer the darkness question. Plus its a LOT easier to take off sunglasses than pop out tinted contact lenses when venturing indoors!
You'd need photochromic contact lenses to get around that problem - is that what your idea is?

Rob.

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GarethB
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Postby GarethB » Tue 21 Jun 2005 7:43 am

Thanks Rob,

The issue I have with standard sun glasses, even the modern wrap arounds is that there are areas where light still comes in from the sides. The reflection from the inside of the glasses is a problem and the brightness of light through the gap.

The hospital yesterday put me intouch with the manufacturer of my lenses who then put me in touch with the US manufacturers of the lens material. I spoke to them yesterday evening and under laboratory conditions my lenses provide UV protection. They did not say if it was UV A or B, but did say when working with UV lights, the proper eye protection should still be worn. This is because the lenses have not been clinically trialled regarding UV protection. The problem being that people who use these lenses already have cellular damage and they are concerned about accelerating this in what they think would only be a small number of people.

I need to put further thought in to what the final goal is, but keep your thoughts and ideas coming.

Gareth

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Postby Sweet » Tue 21 Jun 2005 2:35 pm

Ok ... i think i know where you are coming from now lol! But, no i guess it doesnt matter to me, as i dont suffer with this problem! LOL!! But ... if i did suffer with sudden brightness i would think that that would be something to solve more than eye colour, UV protection etc.

One thought though ...

It is nice to have tinted lenses, for the main reason that it is easier to spot if you lose it!!! LMAO! Oh a girls logic at times hehehe
Sweet X x X

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