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Weirdeyes 20 Jan 2018, 12:34

Lou

Iím currently wearing R +0.75 -0.75 L +4.25 -1.50. The interesting thing is that the autorefractor readings in the left eye dropped to +4.50 -1.50 when I went without the +3.25 contact lens. So my left eye seems to accommodate a lot without correction. Which might explain why my first prescription is R 0.00 L +1.25.


Lou 20 Jan 2018, 12:11

Hi Weirdeyes

Thanks very much. I meant your recent autorefractor reading along with the prescription you are currently wearing, which was unchanged at your eye test before your ophthalmologist appointment.

However what you are posting is very interesting. If I understand correctly, with a +3.25 contact lens in your left eye, the autorefractor result from several years ago was equivalent to the following without glasses/contacts:

R +2.25 -0.75

L +5.50 -1.50

This is very different to your recent reading without glasses/contacts, which when converted to minus cylinder form is:

R +0.50 -0.25

L +3.50 -0.75

I think that these different readings plus your right eye glasses prescription values also continuing to decrease, are reason alone for an optician to be happy to see you to help to explain what is going on.

I wouldn't keep putting this down to anxiety. You are receiving very different results in the period of only a few years, and this needs looking into.

Good luck with getting this sorted.

Best wishes

Lou


Weirdeyes  20 Jan 2018, 10:16

Here are my autorefractor results I got several years ago. With a +3.25 contact lens in my left eye I got.

R +2.25 -0.75

L +2.25 -1.50

My recent reading without glasses was

R +0.25 +0.25

L +2.75 +0.75

I know for sure my astigmatism is pretty much the same.


Weirdeyes 20 Jan 2018, 10:08

Lou

I have heard autorefractors vary a lot on cyl. I think this one overminuses and undercyls. I definitely see better with -0.75 cyl. Without it a lot of text is unreadable. I could read the 20/20 line with it and the doctor assumed my right eye naturally has 20/20 vision naturally because of the low autorefractor reading. But I know I definitely canít see the 20/20 line without correction.


Lou 20 Jan 2018, 05:21

Hi Weirdeyes

Obviously I can't be sure of the reason for your eye strain.

If I was in your situation, I would be concerned that the autorefractor at your last eye test gave a prescription that differed quite a lot from your last eye test. I fully understand that the autorefractor is just a starting point, but the cylinder values in particular, were significantly different in my opinion. Now I don't personally know much about autorefractors, having only looked into one the first time I went to my current Opticians (Specsavers) in around 2010. My last two eye tests have been by one of the directors. I was booked into see her originally because I was having some slightly non standard issues, and I requested her the second time. Anyway I digress. Going back to autorefractors, I wouldn't have thought that one would have given such a different prescription to your last prescribed one.

I'd be interested in other people's opinions in whether your last autorefractor and eye tests results are too different. Would you therefore mind please re-posting the two prescriptions one after the other, for this purpose, thank you very much.

Yes, I agree with not wearing extra plus. I feel that a lasik consult should finally get you an accurate prescription, but feel that you shouldn't have to go to this extent, unless you are definitely considering lasik to get rid of your glasses/contacts.

In your situation, I'd take your previous prescriptions and the autorefractor results to a recommended optician, and ask them to please determine your accurate eye prescription, as you have become very worried that you may be wearing the wrong prescription. I think that any reasonable eye care professional could understand someone being worried by differing prescriptions, and a patient's desire to have an accurate prescription.

Good luck at finding a solution to this.

Best wishes

Lou


Weirdeyes 19 Jan 2018, 22:46

Iím trying out just wearing contacts and not wearing extra plus. I feel like Iím getting eye strain now. Donít know if itís OCD, not being used to my rx or latent hyperopia. Hopefully a lasik consult can solve this. While image size difference does seem to be a factor I donít think itís the easy explanation a lot of people immediately go to. Just like latent hyperopia might not be the easy explanation Iím looking for. Iíll mention eye strain at the lasik consultation.


Weirdeyes  19 Jan 2018, 20:42

NNVisitor

Nice to know Iím not the only one with fluctuations in best corrected vision. Sometimes my left eye is actually clearer than my right eye. Maybe that test was weirdly done. Iíll just call my left eye borderline amblyopic. Even if it can be corrected to 20/20 my brain will still favor my right eye. Iíll be sure to research it. Iím just going for a consult. Iím also hoping for more through eye tests which will help me out even if I donít get LASIK. Just trying to calm down my OCD.


Lou 19 Jan 2018, 16:46

Hi Weirdeyes

Sounds a reasonable way to proceed.

Take care

Lou


Weirdeyes 19 Jan 2018, 15:52

For now I think the eyestrain is due to image size differences and anxiety. Iíll just make a lasik consult and trust they can find any latent hyperopia. Iím pretty sure I do have it, but it might be mild. Maybe Iíll wear glasses when Iím older, theyíll just have a more similar prescription.


Lou 19 Jan 2018, 13:58

Hi Weirdeyes

That you were still able to accommodate a bit with the drops, does suggest that the drops were not fully effective, but rather than them being weak, it could be owing to your eyes having been straining for so long, that they cannot easily relax

That he didn't refract you, doesn't seem very helpful, especially since the reason for your appointment was I thought to check the accuracy of your current prescription, and the reason for your eye strain and near vision issues. If you don't mind me asking, what questions did you ask him, and did he give you a satisfactory explanation for your eye strain and near vision difficulties?

Regarding getting a consultation for lasik, I'm not sure even if this would fully uncover all latent hyperopia, as I believe that it if has occurred over a long period of time, that the dilation agents may only be strong enough to uncover a proportion of it, and it may be a case of prescribing a little more plus than the patient can clearly see in the distance with, wearing the prescription every waking moment for several weeks, maybe even months, until the distance vision fully clears, prescribing a little more plus and so on, until the the point is reached when the eyes cannot tolerate any more plus, and the distance vision no longer clears.

Obviously I'm not sure whether lasik is the best option for you, but you shouldn't need to have a consultation for lasik to get an accurate prescription. Any good optician, should understand your concerns that your prescription could be too weak owing to eye strain even in the distance, and near vision difficulties in a patient who is only 21 years old and has good accommodation.

Maybe if you avoid using any other technical terms, and don't appear to have researched the subject at all, you could mention latent hyperopia (maybe telling a little white lie, and saying that a friend suggested it to you when you talked to her about your difficulties, as your symptoms sound similar to those her brother previously had, and in his case it turned out to be latent hyperopia), and ask whether they think that it is a likely possibility in your case.

I do believe that your eyes are causing you anxiety, and hopefully getting your eyes sorted, will relieve your overall anxiety.

Best wishes

Lou


NNVisitor 19 Jan 2018, 13:20

Weirdeyes

You tried your best. The ophthalmologist tested your vision.

I don't know why you saw less than 20/20 in your left eye. While your situation is different than mine I have experienced variences in my best vision at dofferent eye examinations.

You can inquire about Lasik. Learn everything you can about it beforehand. It does permanently change the cornea. This is something to consider as well.

How does your mother feel about how things went at the exam? Have you discussed Lasik with her?

Hopefully you just relax for now as you've tried and the results are what they are.


Weirdeyes  19 Jan 2018, 12:38

Lou

I could still accommodate with the drops in a bit. They put the drops in after the autorefractor. They never refracted me. They just tested my acuity with glasses. I donít know why my left eye got blurrier. It could be all sorts of reasons. Maybe this is my anxiety talking, but Iím thinking of getting a consultation for lasik. If I truly have latent hyperopia theyíll find it. If I donít I can just get lasik on my left eye and never think about my eyes again. At least until Iím in my 40s. Iíll also consult with mental health people. Maybe lasik will improve my mental health or maybe it wonít.


Lou 19 Jan 2018, 02:37

Hi Weirdeyes

Sorry for the delay in replying to you, I had rather a busy evening.

Re.: Lou

It went horribly. He was a nice doctor, but didnít know shit about refractive error like I expected. The autorefractor also sucked. It said Iím R +0.25 +0.25 L +2.75 +0.75. They also used weak dilating drops that never totally relaxed my eyes. My mom had a lot of faith in him just because heís an ophthalmologist. Since they tested my corrected acuity as my drops were starting to work my left eye couldnít see the 20/20 line. I know it got 20/20 before. The drops definitely blurred my left eye more than my right eye.

I'm really sorry to hear this. To try to understand better what happened, do you mind if I ask you a few questions. When you were tested by the autorefractor, was this before or after the dilation drops, or both?

You mention the dilating drops being weak and not fully relaxing your eyes. Please don't take this the wrong way, but did the Ophthalmologist say that the drops were weak, if not how can you be sure that they were, and how do you know that they never totally relaxed your eyes? Is this because you were still able to accommodate well after your eyes were dilated? Did the drops blur your left eye more than your right simply because your left eye has more refractive error? I think that there are three possibilities, that you have no latent hyperopia to uncover, that your eyes are so strained that even if the drops were sufficiently strong for most people, they didn't work very well for you, or that the drops were too weak.

When you say that they tested your corrected acuity as the drops were starting to work and this resulted in your left eye not being able to see the 20/20 line, sorry I'm not sure what you mean. Surely if the drops were starting to work, it would be a case of finding your refractive error with your eyes in a semi-dilated state. I'm not sure why the ophthalmologist checked your visual acuity when the drops were starting to work. I would have thought that he would have done a refraction before and after to see whether the drops uncovered any latent hyperopia. Whatever, surely it would have been possible to correct your left eye to 20/20, since it has been corrected to 20/20 before. If you are saying that after dilation, your left eye could not see 20/20 with the prescription determined by the autorefractor before dilation, wouldn't this be the very thing the ophthalmologist is looking for, evidence that in its dilated state, the eye needs a stronger prescription. However since I don't know all the details, I'm just guessing.

Did he give you an actual prescription, or just autorefractor readings?

Converting the autorefractor reading to minus cylinder, they are:

R: +0.50 Sph -0.25 Cyl

L: +3.50 Sph -0.75 Cyl

I fully appreciate that you are more than capable of doing this for yourself.

These are clearly lower than before, and presumably you feel that these readings are not correct.

Did you ask the optician for an explanation for your bad eye strain and near vision difficulties? If so, what please did he say?

If the above is your new prescription, I'm just not sure what to say. It contradicts that you feel that you can see better in your right eye with 1.50 Cyl than none at all, and your previous comments that your left eye could not be corrected to 20/20 until they increased the cylinder.

I'm not really sure what to suggest doing next. If I was you, and I have no idea of the costs of eye tests in the US where I presume you live, I would give up with the idea of dilated exams, finding hyperopia, trying to work it all out for yourself, and would ask for recommendations from friends and family of a good optician, who has prescribed glasses that they are very happy with, and make an appointment.

When you arrive for the appointment, I would say that you are worried that you may have been subjectively choosing the wrong lenses in recent eye tests, as you end up with a prescription that causes you bad eye strain even in the distance, and near vision difficulties. I would ask therefore if after testing your eyes in the conventional manner, he/she could please independently check your prescription via a retinoscope to see whether they would have prescribed the same prescription if you had been unable to communicate.

If there a difference in the two prescriptions, I'd ask him/her to show you the two prescriptions via the trial lenses, so that you can see the difference between what you have chosen and what the optician would prescribe for you if you were unable to communicate. If the lines of the letters look narrower and more defined with his/her choice, it may be that you have been choosing the option when the lines look wider, mistaking a line that looks slightly wider because it is slightly blurred, as being bolder, and that you are choosing what you perceive as bold or dark, rather than sharp and well defined. I'm not saying for one moment that you are doing this, just suggesting this as a possibility from something you said in a previous post about choosing the darkest option.

I'd ask the optician to test your visual acuity with both prescriptions, to see whether it differs, and if it is about the same with both prescriptions, it may be worth asking if you can try his/her prescription determined via retinoscopy for around a month, since you are having bad eye strain with your current prescription anyhow.

Please don't be offended, but rather than a series of poor opticians/appointments going wrong, you may inadvertently be choosing the wrong prescription, and having a prescription determined for you as if you were unable to communicate, may be what you need, as again meaning no offence, I feel that you have analysed your own vision so greatly, that it may be better to now step back and trust someone to do it for you, as your last two appointments have not been very successful.

I really hope that you are not offended by what I say. I have no intention of upsetting you, and wouldn't have wasted my time replying to you all the time, if I wasn't genuinely interested in helping.

I feel that a lot of the issue is that you have analysed your own vision so greatly and come to so many of your own conclusions, that it is now confusing the issue.

With me personally, I can see better under corrected than over corrected because even at the age of 44, I have enough accommodation to add a little bit of extra plus, whereas there is nothing anyone can really do to take away too much plus.

Being only 21, I'd imagine that you could quite easy add the extra plus if you are under corrected. I fully appreciate that you mention bad eye strain, which suggests that you are working hard to add extra plus, but since you have become so anxious regarding your eyesight, maybe you are just straining because you feel that your vision is blurred/your prescription is too weak, and not because you are genuinely straining to add needed extra plus. So much of vision occurs in the brain, and the human brain/emotions are so powerful, that for all of us, it just isn't always easy to work out quite what is going on.

I'm not suggesting for one moment that your concerns are not genuine or all in your head, only sharing my experience gained from many years of playing the trumpet, that a lot of the time you are not doing what you think you are doing, and over analysis leads to paralysis.

I am again very sorry that things didn't go as you hoped.

My very genuine and heart felt best wishes to you.

Lou


astigmaphile 18 Jan 2018, 18:53

I have to wonder why any one would have 21D of cylinder error. Sounds like some kind of corneal problem like keratoconus or pellicid marginal degeneration.


Weirdeyes 18 Jan 2018, 12:04

Lou

It went horribly. He was a nice doctor, but didnít know shit about refractive error like I expected. The autorefractor also sucked. It said Iím R +0.25 +0.25 L +2.75 +0.75. They also used weak dilating drops that never totally relaxed my eyes. My mom had a lot of faith in him just because heís an ophthalmologist. Since they tested my corrected acuity as my drops were starting to work my left eye couldnít see the 20/20 line. I know it got 20/20 before. The drops definitely blurred my left eye more than my right eye.


Lou 18 Jan 2018, 07:20

Hi Weirdeyes

Hope that it goes well for you.

Best wishes

Lou


Weirdeyes 18 Jan 2018, 06:45

Lou

Still a few hours away. Iíll see what I can do.


Lou 18 Jan 2018, 06:31

Hi Weirdeyes

Presumably this is the day of your dilated eye exam.

Please update us at your earliest convenience.

Best wishes

Lou


Weirdeyes 18 Jan 2018, 06:21

Savian

Same with me. I kind of have an idea though. I knew this guy at school who wore high plus glasses. One of his eyes looked noticeably like a different shape. So I assume he has bad astigmatism in one eye. It definitely wasnít -21, but probably worse than average.


Savian 18 Jan 2018, 05:16

Wondering how the eye appears behind such a lens.


Weirdeyes 17 Jan 2018, 19:22

I guess this is the astigmatism equivalent of a myodisc I was asking about.

-21 cyl lenses http://instagram.com/p/BDpwXNeLSoM/

The glasses https://instagram.com/p/BD5-chHrSnY/


astigmaphile 17 Jan 2018, 18:57

Crystal Veil,

I could not find the really high cylinder. My cylindermania is going berzerk just thinking about it. I have never heard of prescriptions that high.


High Myopic 17 Jan 2018, 16:51

Can Optimumcoatings.co make me some -40 diopter or higher eyeglasses? I really want to have a stronger myodisc pair than my -38 diopter pair. Whats the strongest rx they can go to?


Weirdeyes 17 Jan 2018, 16:39

Likeglass

Great Instagram. Especially for my cylindermania. Iím curious what people look like wearing high cyl. I saw some -21 cyl on there!


Crystal Veil 17 Jan 2018, 16:31

LikeGlass,

amazing to see a lens with astigmatism of +17.25 on that site. Thanks for posting!


LikeGlass 17 Jan 2018, 15:43

Guess the link would help!!!

Sorry!

http://www.instagram.com/p/Bd2T1OiH3Wo/?taken-by=optimumcoatings


LikeGlass 17 Jan 2018, 15:42

Crazy high Rx, hope they show the finished product, lenses in frames.

Lens prep -36d


Lip 17 Jan 2018, 15:39

Cactus Jack

ps

My PD is 66.

Lip


Lip 17 Jan 2018, 09:11

Cactus Jack,

Can you please help me with rx for Prism glasses ?

Not sure what zenni offers,I think the highest is 5 ,base in or out.(hope that's correct)Iwould prefer where the thickness of the lense is in the inside.

This is my Current rx, without the add (2.50 )Zenni only do Single Vision Prism Glasses

R sp +0.25 Cyl -0.25 Axis 80

L sp +0.50 Cyl 0.50 Axis 102

Over the years you"ve explained to me about Prism Glasses ,I understand , and would Like to Try the highest available on Line.

Regards,Lip (Leo)


Maurice 12 Jan 2018, 18:26

Many thanks for the suggestions on purchasing lined trifocals online. I start perusing those sites this weekend.


Curt 12 Jan 2018, 06:31

JEMoptical also sells lined trifocals online. I have two pairs from them.


EyrTri 11 Jan 2018, 17:29

Maurice,

Yes trifocals (with lines) are available online. SimplyEyeglasses and LensesRX will do that for you.

I am very fussy about the height of my trifocal segments, so what I prefer to do is purchase a frame that I want to use. When I get the frame I measure where I want the segments to be and use one of the internet lens replacement companies to put trifocals in that frame. Recently I used Replacement Lens Express to make lenses for several pairs of glasses. They made them just as I asked, the prescription was accurate and the turnaround time was short.

Any questions let me know.


Soundmanpt 11 Jan 2018, 17:04

Maurice

Just to be sure I went into Zenni (zennioptical.com) and yes lined bifocals are still available. With Zenni if you were to choose Say #220421 glasses it cost of single vision would be $12.95. It would bean additional $17.95 to make that same pair of glasses into lined bifocals.


Maurice 11 Jan 2018, 15:45

Quick question---are lined trifocals still available? Who sells online?


Weirdeyes 14 Dec 2017, 04:08

SC

I don't actually have a lazy eye. Just smaller image size in my left eye. When they were testing my left eye when I first got glasses I noticed the letters looked too small for me to see. It wasn't obviously blurry to me. The 20/40 line looked like the 20/15 line. When they uncovered my left eye I was shocked at how big that impossibly small line actually was. I don't know what my best corrected acuity was at that point. Maybe 20/50. I had no cylinder correction. Eventually it improved to 20/30 and I had -0.50 cylinder. At that point I was sick of being the freak with the lazy eye, so I just willed my left eye not to be lazy anymore. During my next eye exam when they were testing my left eye with a +3.25 contact lens in I noticed a pretty big line on the eye chart was unreadable for me. It was smudged looking. So I had 20/50 vision with that contact lens and felt like a failure. Bu then I discovered my left eye actually needed -1.25 cylinder. After that it could see the 20/20 line. So either my efforts worked or my left eye wasn't lazy to begin with. As a kid I remember loving 3D movies. I think my relatively good depth perception kind of hints at me not really having a lazy eye. It's also interesting how my left eye's acuity seems to be correlated with how much cylinder it needs. The 20/20 line looks pretty small to me, but I have that problem with both of my eyes. It's like they're both lazy.


SC 14 Dec 2017, 03:05

Weirdeyes,

It makes sense that plus contact lenses magnify less than glasses as they are closer to the eye.

I don't know what the factors are for image size bare-eyed. My eyes are not the same. The lazy eye image is smaller than the good eye image. I don't know whether this is what leads to lazy eye or is as a result of it.

My Rx is not quite as diverse as yours OD +1.75 OS +4.5 but I've never got the left eye fully corrected so just have +2.0. There seemed no point @4.5 I still only get 20/50 or 20/60 and my brain only uses the image for peripheral vision anyway


Weirdeyes 12 Dec 2017, 12:38

Is it normal to NOT experience image size differences when you wear glasses with a difference in prescription? They're currently R+0.75 L+4.25. I actually notice things look smaller through my left eye when I wear contacts.


Cactus Jack 11 Dec 2017, 17:15

ZR,

Many years ago Optical4Less had a special makings department that would make specialty lenses. I don't think they do that anymore, but you might shop around some.

From an optical standpoint, it really does not matter how thick the lens is in the center, the power of the lens is the difference between the curve of the front surface and the curve of the back surface AND the Index of Refraction of the lens material.

For example a -7.00 lens might have a front curve of +1.00 and a back curve of -8.00. Typically, a lens of around -8.00 power will have a front surface curve of 0.00 (flat) to minimize the curve of the back surface and minimize edge thickness.

Low Index safety glasses have thick centers for safety reasons. Because of its strength, a Polycarbonate lens can be a lot thinner than a CR-39 lens.

The biggest disadvantage of glasses with very thick lenses is the weight on your nose.

You might think of a reason for wanting some very thick lenses in your glasses. One possibility i that you are to have a part in a play where the character is very nearsighted and wears extremely thick glasses.

Another way is to consider GOC with a high prescription.

C.


Billy A 11 Dec 2017, 14:16

ZR

Ice cubes? No :) -7 will be about 7-8mm thick (low index)


ZR 11 Dec 2017, 11:33

What do you consider thick for rimless/semi-rimless? I'm a -7.00 and am thinking about getting a semi-finals with a 53 width. Will they look like ice cubes?


Glasses Lover 01 Dec 2017, 13:33

Anonymous poster below...

Please elaborate more regarding reducing PD distance to get prism to effectively get thicker lenses. I've never heard of this and am very interested.


 01 Dec 2017, 05:58

I,Glasses,

Get as large frame as possible. Reduce your PD distance which effectively introduces prism correction


NNVisitor 28 Nov 2017, 22:02

A thin coating that can turn prescription lenses into night-vision glasses using invisible infrared light based on nan-photonics technology is being developed by a team at Ben-Gurion Universty in Israel.


I, Glasses 25 Nov 2017, 15:12

I am about to get new glasses, and I want them to be as thick as possible with my actual Rx, which is -4 sphere, with some additional correction for astigmatism. Aside from the lens material being CR-39, what other optical 'tricks' will increase their thickness. I intend to get rimless, by the way, vintage-look Artcraft-Rimway. Thanks.


Weirdeyes 25 Nov 2017, 07:32

I was bored so I asked some people on this app if my glasses look fake. 64% said they look fake and I was showing the distortion from my +4.25 eye. I guess most people don't notice, but one commenter said he noticed the distortion but they didn't look as strong as his glasses. No clue what his rx is supposed to be.


High Myopic 18 Nov 2017, 17:26

What do you think is the rx of these half rimless myodisc glasses? Minus 15 or more diopters?

https://i.imgur.com/S1JhL1g.jpg

https://i.imgur.com/kfER71I.jpg


astigmaphile 14 Nov 2017, 09:55

I'm =2.50 at155 in my left eye and the lens isn't thick, especially the pair Zenni made with high index lenses that I did not specifically order.


Weirdeyes 14 Nov 2017, 01:38

This may be a dumb question, but here it goes. Are high cylinder lenses thick? Like maybe +2.00, -4.00. +2.00 and -2.00 aren't exactly thick lenses, but would they be thick in this case?


Lou 10 Nov 2017, 10:51

Hi guest

In minus cylinder form, your prescription is:

R: -1.25 Sph -0.75 Cyl Axis 45

R: -1.25 Sph -0.50 Cyl Axis 165

Although not a strong prescription by any means, yours is hardly the weakest and I wouldn't have thought that it would look like plain glass.

My prescription is:

R: +0.50 Sph -0.50 Cyl Axis 92

R: +0.25 Sph -0.25 Cyl Axis 85

Only to other eye issues, I wear mine all the time. I'd say that my prescription is very weak. You can't really see any prescription in my glasses when I wear them, but if I take them off and look at them, you can clearly see that they are prescription, particularly the right lens.

Nobody has ever asked me about my prescription, so I don't think that the majority of people take much notice.

I hope that this will help.

Lou


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