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New contact lenses don't make a difference, anyone?

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NJD
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PostPosted: 15:53 - 06 Dec 2015    Post subject: New contact lenses don't make a difference, anyone? Reply with quote

TLDR: Paid for contacts, put them in and fcuk all difference to vision, anyone had the same thing?

Recently finished my trail period for contact lenses and had the first batch that I've paid for delivered, they got dropped through the front door (possibly damaged them?) by postie and when I opened a pair up out the packaging and put it in my eye they make no difference to my vision like they're not even in.. when you get a new pair of contacts delivered do you need to do anything before you wear them?

After wearing them all day I cleaned them and put them in new solution (like I would a working pair) and put them back in this morning, nope.. no difference. I then opened a second pair (paid for a few months worth) and the same thing again, no difference.

Is there something I need to do to them or should they just be "plug and play" so to speak.. nothing was mentioned throughout the trail period of purchasing them about needing to do anything. I just can't understand why the ones I've purchased are having no effect when the trail period lenses (I assume where the same thing) worked fine (bar a few days where they where occasionally blurry and sore).

Opticians are closed today so I'm tempted to return the batch I purchased tomorrow and claim them unfit for purpose and get an exchange, unless that is someone has a similar experience?
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hellkat
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PostPosted: 15:57 - 06 Dec 2015    Post subject: Reply with quote

Are you putting them in "right side up" ...?

My daughter managed to put hers in "inside out" for several months before deciding she was getting regular headaches and wondering why ...


P.S. Being dropped through the mailbox won't break them, they're a bit sturdier than that Laughing
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NJD
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PostPosted: 16:04 - 06 Dec 2015    Post subject: Reply with quote

hellkat wrote:
Are you putting them in "right side up" ...?


As below.

https://dqqzjdqmiszdy.cloudfront.net/sites/default/files/content_images/clensapply_gridbox2_300x200.jpg
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snowsurfer
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PostPosted: 16:19 - 06 Dec 2015    Post subject: Reply with quote

Check the lens power on the packet, they're either wrong or have been miss-labelled.

Having your contacts in the wrong way will still improve your sight, but will be as uncomfortable as fuck because of the raised lip as shown in the previous pic.
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NJD
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PostPosted: 16:26 - 06 Dec 2015    Post subject: Reply with quote

bigroj2003 wrote:
Check the lens power on the packet, they're either wrong or have been miss-labelled.


If any then the latter as it says "-0.25" which is correct, there are two numbers "x.x" and "xx.x" before it that I don't understand (but why would I?).. x = random number, not relevant).
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P.addy
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PostPosted: 16:45 - 06 Dec 2015    Post subject: Reply with quote

0.25!!!!!! That's pretty much perfect vision. Laughing I'm -6.25 and -6.00.
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NJD
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PostPosted: 17:09 - 06 Dec 2015    Post subject: Reply with quote

Paddy. wrote:
0.25!!!!!! That's pretty much perfect vision. Laughing I'm -6.25 and -6.00.


On paper it is a small correction but out on the road it makes a world of difference when I'm riding with contacts (that work) or glasses versus without them. I don't even feel safe riding without either one anymore becuase of how much difference it makes with them in/on.

I only ever bothered with contacts because glasses are a pain in the arse when it comes to bike helmets, the less distractions and problems I can cause myself while on the road the better.

I dread to think of how many people are on the road that need glasses and don't wear them, might explain a few bad driving examples I encounter daily. Shocked
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NJD
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PostPosted: 20:36 - 08 Dec 2015    Post subject: Reply with quote

Update: Turns out it's possible that I got delivered a bad batch (opticians said something about a dirt build up) although have to wait a couple of weeks to see if the ones I'm getting delivered work, if they do then all is well and if they don't then I'd need to try a different brand or another set, not that I think it will get to that since the trail pair where working fine the day before I put the dud pair in.

Couple of weeks commuting with glasses, could be worse. Thumbs Up
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Aff
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PostPosted: 20:41 - 08 Dec 2015    Post subject: Reply with quote

Just order them off contactlenses.com or the like and get them next day for a 1/3 of the price.
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iooi
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PostPosted: 22:20 - 08 Dec 2015    Post subject: Reply with quote

NJD wrote:

On paper it is a small correction but out on the road it makes a world of difference when I'm riding with contacts (that work) or glasses versus without them.

I dread to think of how many people are on the road that need glasses and don't wear them, might explain a few bad driving examples I encounter daily. Shocked


-0.25 will make no difference at all. In fact if you are noticing a difference then its all in the mind Karma
As to needing glasses. Mrs is +2.00 and that is as the optician says good driving vision and see can see more than well enough without glasses when in the car.

2 weeks for contacts.... Someone is having a laugh...
Just how much are you paying?
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NJD
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PostPosted: 23:22 - 08 Dec 2015    Post subject: Reply with quote

iooi wrote:
-0.25 will make no difference at all.


I'd have to disagree. It is only a small correction (on paper) but I personally find (for me) it does make a difference when it comes to being out and about on the bike, for me it makes things in the distance sharper and allows me to react faster/sooner. Of course I can ride without glasses/contacts and did do so for quite some time when I first started riding without any issues but prefer the correction.

Only reason I asked for contacts over glasses is for convince while on the bike.

iooi wrote:
2 weeks for contacts.... Someone is having a laugh...
Just how much are you paying?


Well that's what the optician said but I've had to re-order lenses on the trail period and had them within a few days, shall see.

Somewhere between £10 - £15 per month (including solution).
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Nexus Icon
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PostPosted: 14:36 - 09 Dec 2015    Post subject: Reply with quote

-0.25?

Christ, mine move around more than that between check-ups.

I have gone up and down between -6.5 and -7.5 and back over the last 10 years and I don't even notice. To notice -0.25 is insane.

Fair play, hope you get it sorted.
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Doovy
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PostPosted: 14:47 - 09 Dec 2015    Post subject: Reply with quote

-4.25 over here.

The other numbers are diameter and base curvature.
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hellkat
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PostPosted: 16:38 - 09 Dec 2015    Post subject: Reply with quote

Paddy. wrote:
I'm -6.25 and -6.00.

Shocked Shocked Shocked Wow! I thought I was blind with 3.75 and 4.50
(although apparently that's improved since I got longsighted Laughing )
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Rogerborg
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PostPosted: 16:59 - 09 Dec 2015    Post subject: Reply with quote

To be fair, Paddy's eyeballs were replaced with marbles after his 8th crash.











I want to lick them, is that weird?
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NJD
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PostPosted: 22:46 - 09 Dec 2015    Post subject: Reply with quote

Nexus Icon wrote:
To notice -0.25 is insane.

Fair play, hope you get it sorted.


I'm probably making my vision sound worse than it is and the correction more than what it is. It just allows me to see things in the distance sharper and quicker, once I'd worn glasses on a bike for the first time it made sense to always have that extra bit of help out on the roads. It's also possible that my exception of how far into the distance I should be seeing without glasses is high and therefore why I feel the need to wear the glasses/contacts, although to counter that when I looked at a number plate on my Module 2 from 20 meters (so DSA Derek said it was 20m) I didn't even want to attempt it without as it was blurry, although again I was probably being a potato and didn't want a quick trip home because I couldn't be bothered to put the glasses on.

I didn't wear my glasses/contacts while on my commute in daylight earlier and made it form a to b in one piece without any issues although decided to wear them on the way back just because of how dark it is, probably just stick to that until contacts arrive.
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JP7
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PostPosted: 22:09 - 10 Dec 2015    Post subject: Reply with quote

My lenses are only -0.25 but I have a greater correction for astigmatism, this is where my benefit comes from.

Lenses are mass-produced to specific measurements, so they are not always 100% tuned to your prescription. You'll find that glasses give you a greater benefit because they'll be perfectly made to your prescription.

However, if your lenses are only correcting -0.25 without some sort of correction for astigmatism or similar, then I wouldn't imagine they're worth the money. In fact, at that strength I reckon you'd still be well within the driving standard. It's no surprise that you aren't really seeing much benefit.
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iooi
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PostPosted: 22:42 - 10 Dec 2015    Post subject: Reply with quote

JP7 wrote:
You'll find that glasses give you a greater benefit because they'll be perfectly made to your prescription. .


Within certain limits...
On 0.25 you are looking at a possible 25% error and still being Ok. Then there are factors such as assumed distance between lens and front of eye. Makes a difference to power reading and also if you are looking through the center of the lens or off center which again can make a difference.

So it would be possible with the above factors for 0.25 to actually read zero...
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RhynoCZ
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PostPosted: 22:45 - 10 Dec 2015    Post subject: Reply with quote

OP, contact lenses can not get damaged by dropping the box. It's soft gel, only cuts and ripping on the actual lenses can damage them. I mean, if the container of the lense is damaged and leaking, I wouldn't put that in my eye. I'd assume the lense would be completely dry anyway, if the solution leaked.

When I get a new set of lenses, I just take them out of their containers and put them on, perfect vision right away.

''plug and play'' is what they are. Thumbs Up

The right side also does not matter, some people have problem with this, I don't. I accidentally put lenses the ''wrong side up'' in my eye more than once, the vision was the same and I did not even feel any discomfort.
By the way, there are no universal lenses. The lenses differ in the radius of curvature. Not everyone has got a perfectly round eyes, as you might know. Once again, I accidentally tried different curvature, mild discomfort, eyesight alright.

Riding with -0.25d, the fact is, you can't tell the difference. IF you've got -0.25d contact lenses, than you should have at least -0.50d glasses. If you have -0.25d glasses, you can't really wear contact lenses, as the contact lens is directly on your eye, whereas the glasses are not. If latter is what you have, you unnecessarily strain your eyes. The funny bit is, they eyes/brain will adapt to it at some point and then you will need to keep wearing them.
I've got -5.50d lenses, I should have -5.50d and -5.75d, though I asked and they told me it's not necessary. I can tell there is a slight difference between the eyes wearing -5.50d on both eyes, but when you don't think about it and use your both eyes the picture you see gets always crisp enough.

If you are not sure, ask your ophthalmologist. Don't ask the people that sell the stuff though, they'll tell you to buy a white cane just in case. Wink
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iooi
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PostPosted: 09:14 - 11 Dec 2015    Post subject: Reply with quote

RhynoCZ wrote:
IF you've got -0.25d contact lenses, than you should have at least -0.50d glasses.


Don't know where you are getting your figures from. But you are miles away from the truth.

0.25 glasses to contact lenses is 0.01 difference in the power required.

You are looking at 4.00 before you get to 0.25 difference.
Even then minus & plus powers makes a difference to which way it goes
minus - 3.75
Plus = 4.25 (rounded to nearest power)
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Minty
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PostPosted: 09:16 - 11 Dec 2015    Post subject: Reply with quote

I had problems seeing through some contact lenses I had. I drilled a hole through the centre of them and found they were much better.

Worth a go?
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andyscooter
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PostPosted: 10:25 - 11 Dec 2015    Post subject: Reply with quote

Minty wrote:
I had problems seeing through some contact lenses I had. I drilled a hole through the centre of them and found they were much better.

Worth a go?


Did you take them out first Laughing
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RhynoCZ
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PostPosted: 10:48 - 11 Dec 2015    Post subject: Reply with quote

iooi wrote:
RhynoCZ wrote:
IF you've got -0.25d contact lenses, than you should have at least -0.50d glasses.


Don't know where you are getting your figures from. But you are miles away from the truth.

0.25 glasses to contact lenses is 0.01 difference in the power required.

You are looking at 4.00 before you get to 0.25 difference.
Even then minus & plus powers makes a difference to which way it goes
minus - 3.75
Plus = 4.25 (rounded to nearest power)


I've got -6.00, -6.25 glasses and was given -5.50 contact lenses, which are adequate. From that I assumed it was this difference. My apologies for misinformation. Anyway, when I push my glasses onto my nose I see better, as the lenses of the glasses are closer. That also contributed to my ''theory''. Embarassed

I still can't tell -0.25 difference in the real world, but I might be too far off with my blindness. Laughing

BUT, all the rest still stands, I just got mixed up with numbers. Go ask your ophthalmologist about the lenses.
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LustyLew
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PostPosted: 11:01 - 11 Dec 2015    Post subject: Reply with quote

I gave up on all that contact lens/milk bottle glasses malarky when my vision hit -11.50!

I coughed up mega bucks and had implanted lesnes, describing the procedure freaks many people out.

I recommend you watch this: https://www.youtube.com/watch?v=feOn9SI5nxE! Ver informative, but certainly not for the squeamish!
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UnknownStuntm...
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PostPosted: 11:18 - 11 Dec 2015    Post subject: Reply with quote

Nobody questioned the prescription then? Sounds like horseshit to me.

I've been through several differen opticians and the time taken in the chair is absolutely well spent. Shit opticians will get you out in 15 minutes. Good ones won't huff when you can't answer the 'is it red or is it green' question for the 400th time, they'll do something else to determine your prescription.

My specs prescription is 0.25 different to my contacts prescription, and he said to me 'you won't notice the difference'. I thought I would, being a smartass, so I said go on, show me. He did, and with both eyes I couldn't tell what was what. Perhaps I could have with one eye on it's own, but it's not iften I use just one in daily life.

I think you should go back to the place you're paying (Imma guess it's Specsavers) and tell them you'd like another eye test with a different optician.

You get precisely one pair of eyes, do not fuck about with them.
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