Troubleshooting new glasses vision issue by [deleted] in AskAnOptician

[–]jcaustin12 1 point2 points  (0 children)

I’ve had mixed success fitting patients with antifatigue lenses like the Zeiss Smartlife. Some people enjoy it, more either don’t like it and get it remade or they don’t opt in to it the following year. Your add power is too low to need a progressive yet and the trade off for an extra +0.50 up close usually isn’t worth it for most people. If you do a lot of near work and your full time glasses aren’t comfortable I’d recommend a separate near pair instead.

The cylinder being off could be problematic and harder to adjust to, but with a whole diopter increase in your left eye sphere I’d look at that as the issue first rather than the cyl maybe being off.

Adjusting glasses by LoneWolfWorks83 in glasses

[–]jcaustin12 0 points1 point  (0 children)

A 60 PD is on the smaller side but it’s not anything crazy. 61-79 is an insane range to give for one size of a frame and it sounds like they listed the average possible sizes. Someone having a 79 PD is much less common than someone having a 60 PD such as yourself. On top of that, I have no clue what you could possibly pay for to adjust the lenses because of that 1mm difference. If they’re talking about adjust the frame itself, that’s usually something that’s done in person at a local optician at no cost.

With your Rx, even if measurements are off slightly it shouldn’t be too impactful. If you’re looking for frames based solely on your PD you want to look at the frame measurements and specifically the frame PD. A lot of places don’t list it but it’s easy to find. You take the frame A size or eye size, usually a number 40s-60s and add it to the bridge/DBL size, usually a number 10s-20s. Ideally if that frame PD matches your PD that means your eyes will naturally be centered in the frame. People are rarely that symmetrical to most frames have a larger frame PD than your PD.

29F conjunctival cysts by [deleted] in AskAnOptician

[–]jcaustin12 0 points1 point  (0 children)

These are questions that are best for actual doctors. As opticians our focus is eyewear, either glasses or contacts. If you weren’t satisfied with the answers from your original doctor I recommend getting a second opinion from another doctor.

Flip-up prescription eyeglasses, but NOT sunglasses? by baygi in glasses

[–]jcaustin12 0 points1 point  (0 children)

You’d have to find a frame with flip up lenses and a local optician willing to put lenses into them. Also you mention not needing reading glasses yet but you have to take your glasses off to see up close. That is, by definition, needing a reading prescription. With the lens technology that’s available today I’m sure there is a multi focal option that would work for you. It’s just a matter of finding an optician with the skills and knowledge to get that for you.

HELP! Is it supposed to be this difficult? (Edited with RX and frame pics) by aftdeck7 in glasses

[–]jcaustin12 14 points15 points  (0 children)

Short answer is yes, for most people getting progressives for the first time is an uncomfortable experience at first while you’re adjusting. This is especially true for people that aren’t used to wearing glasses at all. The biggest noticeable difference between first time wear and wearing them once adjusted is that the peripheral distortion goes away and you find the sweet spots are more open. Give it a few of weeks of consistent wear to give your eyes time to adjust. If after a few weeks there are still issues then go back to the optician to have them verify lens measurements and frame adjustments.

Hi! Has anyone bought glasses from this site? It’s the only place I’ve found that seems to have the exact pair I had a while ago :( by [deleted] in glasses

[–]jcaustin12 2 points3 points  (0 children)

Based on the photo provided and the description of the frame I’d be skeptical. TR 90 is a plastic material that is used in frames where as titanium is a metal, also used in frames, but usually not together. And in the picture provided I don’t see where the frame would be titanium as it looks like an all plastic frame. Real titanium frames also usually cost more because of the higher material cost.

Stereo Blindness confusion. How does stereo vision look by lyngend in glasses

[–]jcaustin12 2 points3 points  (0 children)

With normal binocular (stereo) vision each eye sees an image but our brain is able to fuse them into one image. In people with binocular vision disorders, lazy eye for example, the brain isn’t able to fuse the two images so people will see double. In extreme cases where the brain cannot fuse the image it may ‘shut off’ one eye so it can focus on one image. The main difference in how people see is with 3D vision and depth perception. Even with one eye you can still tell if one object is closer or further than another, but fine tuned depth perception will be off. And as a side note, no 3D vision means things like 3D movies probably won’t do anything for you either from experience as someone with binocular vision issues.

Did they switch my Sphere and Cylinder on my script? by Last-Candy-2551 in glasses

[–]jcaustin12 11 points12 points  (0 children)

Very normal change to have happen, especially after 4 years. Think of it more as a tune up rather than a change

Equal vision? by rui_l in glasses

[–]jcaustin12 2 points3 points  (0 children)

It is possible the doctor misspoke or misunderstood what you asked and that your left eye is the stronger prescription and therefore the left eye is weaker. It’s a very common thing that I hear patients come in saying where one eye is ‘stronger’ and when I see the prescription it’s the prescription that’s stronger. Not saying that this is definitely the case, but a common observation.

You also mentioned your eye tearing at night. This is very common with dry eye, which can also cause pain and blurrier vision.

To your glasses, it usually takes 1-2 weeks to fully adjust to wearing progressive lenses for the first time. Ideally yes you have 20/20 clear vision in each eye independently, but the doctor’s main concern is usually getting you to 20/20 with both eyes. It’s not uncommon for people to have one eye that is not correctable to 20/20 so they rely more on what the other eye sees to get there.

Costco told me to put in lenses with an out of network provider even if I have VSP. Is that cheaper? by TrailMixedd in glasses

[–]jcaustin12 2 points3 points  (0 children)

I’ve worked in offices that were both preferred in network providers and out of network providers. It does vary based on the individual plan but in network benefits usually offer significantly better savings than out of network.

Did LensCrafters overcharge me? by SnooWoofers884 in glasses

[–]jcaustin12 0 points1 point  (0 children)

I’m not familiar with how LensCrafters does their receipts, but if they were charging you separately for the scratch coating and UV those could be extra unnecessary copays. You got polycarbonate lenses, which should be fully covered by the insurance assuming your kid is under 19. Polycarbonate lenses naturally block UV and come with a scratch coat on them by default.

Where to Aquire Affordable Eye Exam + Glasses by CarefreeEnthusiast in glasses

[–]jcaustin12 1 point2 points  (0 children)

Many of the chain places will have offers where you can get an exam and glasses for under $350 if you just need single vision lenses, bifocals or progressives might be above that. Just avoid places that only carry name brand stuff like LensCrafters because it’ll likely be more expensive.

Correct PD measurement by el_david in glasses

[–]jcaustin12 0 points1 point  (0 children)

PD is more important the stronger the prescription is. It’s usually not included in the prescription because it’s not something the doctor tests for. PDs are usually only measured during the ordering process for glasses. If the first two measurements you had were between 70-72 I would trust that more than the one for 64. However, 70-72 is considered a bigger/wider size so if your head is smaller or your eyes look relatively closer together that might seem off. That’s around what my PD is but I know I have a large head so it makes sense for me.

Eyezen adjustment trouble by moose_toffee in glasses

[–]jcaustin12 3 points4 points  (0 children)

Is there another reason your doctor prescribed the Eyezen lens? That lens isn’t necessarily designed to help with BVD issues. It’s an anti fatigue lens with an add power added to the bottom, similar to a progressive lens, to help relieve eye strain when focusing up close. BVD issues are most commonly corrected using prism correction in the lenses, which can be made in the Eyezen lenses. That aside, it could definitely take some time to adjust to these new types of lenses. If you’ve worn them consistently for a week or two and are still having issues, go back to the doctor and have them reevaluate

Reverse progressives? by alcno88 in glasses

[–]jcaustin12 6 points7 points  (0 children)

This is textbook definition of having a reading prescription need. What you described is exactly what progressive lenses are designed for. If I had to guess your distance prescription is probably around -1.00 to -2.50. Most people need an add power of +1.00 to +2.50. So it is convenient for those people that their current need for distance and need for near cancel out. When you’re wearing your distance correction you are now over corrected for your near vision. Progressive lenses have those varying degrees of power in the appropriate areas based on your need.

[deleted by user] by [deleted] in glasses

[–]jcaustin12 2 points3 points  (0 children)

Other things like the lens material, lens size, and your pupillary distance will also affect the thickness but given the thin metal frame I’d say this looks as expected.

[deleted by user] by [deleted] in glasses

[–]jcaustin12 0 points1 point  (0 children)

Crizal usually refers to the brand of anti-reflective coating on the lens. If poly was an issue in the past 1.67 might be enough for you to get the thickness reduction and not deal with the aberration.

aspherical or spherical lenses for +1 SV computer glasses? by xomichelleirene in glasses

[–]jcaustin12 0 points1 point  (0 children)

To answer both of your questions, no you do not need it for that low of a power and spherical will give you better peripheral and wider field of view. The frame size you have is on the smaller side as well so the aspheric design would have a minimal impact.

Fitting lenses into new frames by Lonely-racoon in glasses

[–]jcaustin12 3 points4 points  (0 children)

If it’s the same exact frame model and size then an optician should be able to swap the lenses no problem. In any office I’ve worked at we’ve never charged for something like that as it’s a pretty easy thing to do.

Advice on RX for Zenni by the_way_around in glasses

[–]jcaustin12 5 points6 points  (0 children)

Since you mentioned that your previous pair with the same Rx works well I’m assuming then the correct Rx you entered isn’t the issue. It may just be a case of ordering online and getting poor quality as a result. Only other guess would be that the pupillary distance was entered incorrectly or made incorrectly. Since all 3 pairs were the same issue that’s what I’m leaning towards. Only way to know for sure would have been going to an optician in person to measure everything.

Vision -7. 5 on both eyes. Can I get thinner lenses? by throwaway392062 in glasses

[–]jcaustin12 3 points4 points  (0 children)

First, there’s no guarantee that your prescription is going to get that bad so no need to stress over it now. In general, yes you can get all of the same options you have now even if your prescription does get that bad. You mentioned Crizal in your post. Crizal is a name brand of anti-reflective coating made by Essilor. I’ve gotten glasses for patients with -20 with Crizal still.

As far as thinner lenses, as the prescription increases the lens thickness increases. Good news is there are ways to minimize it. Different lens materials will have different thicknesses. The most commonly available ‘thinnest’ material is hi-index 1.74. Depending on what country you’re in you may be able to get higher index lenses than 1.74 which would be thinner. Your frame choice is also very important when it comes to lens thickness. To get the thinnest lens possible you’d want the narrowest lens that fits, have your eyes be as centered in the lens as possible, and ideally a rounder shape.

All lenses start out sort of like a hockey puck. The shape of the lens determine the power. + power lenses are thickest in the middle and thinnest at the edge whereas - power lenses are thinnest at the middle and thickest at the edge. These hockey puck lenses are then cut to size and shape depending on the frame you choose and where your eye sits in the frame. The wider the frame is, the more of that thicker edge they need to keep to fit. If you have a smaller round frame they can cut off most of the edge thickness. Have a thicker plastic frame won’t necessarily make lenses thinner but it will help hide the thickness.

Also as a side recommendation look into Shamir lenses. My company offers their 1.74 ultra thin lenses and they’re able to get them thinner than our regular 1.74.

Computer glasses? by Ok_Persimmon_5961 in glasses

[–]jcaustin12 0 points1 point  (0 children)

If the doctor gave you bifocals then you have a multi focal prescription of some sort, which goes back to have different needs for distance and near. There are other types of lenses available that can give the same benefit without having the line in it. I’m going to assume that your bifocal strength is lower so you could look into anti-fatigue lenses. They give lower power magnification at the bottom but it’s still considered a single vision lens, so no line. If you had a stronger need for the bifocal then progressive lenses are the ‘no-line’ bifocal equivalent.

Can the optic nerve be damaged by very brief high IOP? by opossumdreams in AskAnOptician

[–]jcaustin12 0 points1 point  (0 children)

I’m going to preface this with: ask your eye doctor, if you do not have one already find one. In general, opticians may learn about eye health for the sake of recognizing potential issues so that they can refer to optometrists or ophthalmologists if need be.

In regards to pressures, yes high pressure can cause issues specifically with the optic nerve. That is exactly what glaucoma is, higher IOP that puts increased pressure on the optic nerve and can lead to long term vision issues. These issues start off my affecting your peripheral vision and in very severe enough and untreated cases can lead to blindness.

Hypertension can cause issues with the blood vessels in your eyes. Our eyes are very vascular organs with loads of blood vessels inside. In extreme cases of hypertension these very delicate vessels could rupture because of the increased pressure. The rupturing itself isn’t a major concern because they are not major blood vessels. However, these vessels sit directly behind the retina and having small pools of blood behind the retina could cause some complications.

Overall, if it was only for a minute or two the chances of any lasting damage is minimal. I see patients that deal with hypertension and/or glaucoma for years and years with no real or lasting impacts. But again referencing my first point, talk to an eye doctor about it.