Laser surgery - I thought of that, but I'd be worried that whoever worked out
how much to trim off might not have the same standards I do. I read that only
50% of treatments result in 20/20 vision or better - what if I'm unlucky?
Also, being short-sighted, I'd be a little loath to give up my excellent close
vision permanently.
What does it cost?
Peter Shute
-----Original Message-----
From: Michael Todd
Sent: Wed 10/10/2007 5:31 PM
To: Peter Shute
Cc:
Subject: Contact lenses vs glasses for birding
Hello Peter,
I too got tired of wearing glasses while using binoculars. This was
about 15 years ago. I was doing a lot of snorkelling and a bit of scuba
diving at the time as well and went into contact lenses. I used them for
about 10 years and was quite happy with them- although they were a
nuisance in themselves when camping. Difficult to keep clean etc. I
would use them for a month or two before passing judgement- it can take
a while to get used to them.
However, five years ago I decided to take the plunge and have laser
surgery on my eyes. One of the best things I've done. I forget that I
ever had to bother with glasses and contact lenses in the past. I'm now
quick draw mcgraw with the binoculars, no shuffling glasses off my face
or re-arranging shifting contacts!
Cheers
Mick
_________________________________________________________________________________
Michael Todd
Wildlifing: Images of Nature: www.wildlifing.com
Latest Images: Shy Albatross, Buller's Albatross, Aust. Fur Seal
PhD Candidate- Tasmanian Masked Owl
School of Zoology, University of Tasmania, Private Bag 05, Hobart, Tasmania 7001
Mobile: o41o 123715
Peter Shute wrote:
> Does anyone here use contact lenses for birding? I'm interested in your
> comments about them.
>
> I wear glasses for short-sightedness. My binoculars have enough relief
> to work with them, but it's still a pain for various reasons, including
> glare coming in the sides, eyepieces never being in exactly the same
> place in relation to my eyes, etc.
>
> I also find that my off axis vision (not peripheral) is blurred enough
> to make identification of birds flying from the side difficult until I
> can turn my head towards them - often too late. This is because I'm
> looking through the edges of my glasses, where such simple lenses have a
> slightly different strength.
>
> So I'm trialling contact lenses. My initial observations:
> - Without binoculars, they're far superior to glasses, but erratic. A
> blink can mean slightly blurry vision till the next blink. Off axis
> vision is as good as on axis vision, and I'm much better at identifying
> fast flying birds, and at spotting birds that aren't in front of me.
> - With binoculars, the glare and inconsistent eyepiece placement is
> eliminated, but I'm finding the image quality erratic. I can't put my
> finger on what's wrong. I think at times I can see more clearly, but at
> other times I'm searching for perfect focus and not finding it. I keep
> fiddling with diopter settings, then setting it back how it was again.
> Shutting one eye to set the diopter setting is pointless, as that upsets
> the lens in that eye for when I change eyes - I've taken to doing it by
> putting one hand over the objective instead. And do you think the birds
> wait around while I do this?
>
> Is this how it is for other contact lens wearers? If so, I'm not sure
> that I'll persist with them, despite the advantages.
>
> Perhaps I'm seeking a level of visual acuity that's not obtainable. My
> optometrist says I have better than 20/20 vision with my glasses, and
> much better than what's legally required for driving.
>
> Peter Shute
> ============================www.birding-aus.org
> birding-aus.blogspot.com
>
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