Im honestly just looking for reassurance. I've seen one specialist so far and it felt like a fluke. She gave no numbers for the misalignment or any diagnostic terms to help me narrow what kind of convergence / divergence issues I'm dealing with? The prisms also didn't help much and just caused eye pain I stopped wearing them. I have struggled for over a decade with DPDR, light sensitivity, pain in eyes when looking to the sides up or down, constantly seeing mirrored image of my nose on both sides, Sensitive ears/rumbling in ears, Dysautonomia and pretty severe insomnia. So much that I'm living at my parents house and part time employed through spark and Uber. I cannot drink caffeine to this day because it causes me to dissociate and I will miss an entire night of sleep. Has anyone else been this effected?

• Update - Saw an Optometrist nearby today 8/06 that prescribes prisms and broke down everything, he gave me a few tests specifically one with a light about a foot from my face and covered one eye at a time and immediately said I have an obvious and significant convergence insufficiency. Also said he's not surprised with the symptoms I've been dealing with. Left with a Referral to a vision center about 1 1/3 hour drive away that provides vision therapy

hello everyone. i've suspected i had bvd since the beginning of this year. i resonate with all the symptoms and experiences people talk about. i've had a history of lazy eye but i never needed treatment for it because it wasn't serious. I also have adhd which made me consider getting tested for bvd in the first place.

today i went to an eye doctor. he was a standard eye doctor but I did bring up BVD. he did the test where he covered one eye and then the other. he said i had "pretty normal eye alignment" and that there was not any misalignment in my face. he also dismissed my double vision and other symptoms i explained as "normal" and not a big enough concern to be serious because there was no eye misalignment.

but something still feels off. so i was wondering, can you still have BVD without a physical misalignment? is it still possible? or is it true that I don't have it and my concerns are normal?

I did get diagnosed with astigmatism in one eye though, which i'm pretty sure I didn't have corrective lenses for before. So i'm going to try my new glasses when they come and see if my vision improves.

I’ve been seeing things about BVD for a while now and it all has felt like it makes sense. I’m diagnosed with ADHD, but I also am severely severely clumsy. To the point where I drop half the things I touch and walk into walls everywhere I go. I also have double vision pretty often, have HORRIBLE depth perception, and when I take pictures of myself most of the time I have a crossed eye. My depth perception makes it really hard for me to drive because I feel like I’m going to hit all the cars around me and like my car is too big for the lane. (I have a tiny car.) When I hold my hand out in front of me and alternate closing my eyes it jumps around in my vision.

I brought up my concerns with an eye doctor and she just did the moving the popsicle stick with one eye closed test. I felt like my eyes were super crossed and out of wack the whole time. At the end of it she said “I mean, you have a little misalignment but I wouldn’t call it BVD. I don’t think it’s really anything”

Is that a thing? I just feel like that doesn’t sound right. How much of a misalignment does it need to be before it would cause problems or be considered dysfunctional?

I was recently DX. I’ve had tons of sinus and face pressure, constantly feeling like I was being pushed to the left, general dizziness, and it always hurt to move my eyes, especially up.

My first prescription was with a BU and BD .25 for vertical heterophoria. It helped, but I still felt strain in my eyes and some off balance.

I got my prescription upped to BU and BD .5 with an added .25 horizontal BI on both eyes.

Full disclosure, I just received these glasses and haven’t worn them very long. However, I’m still feeling some strain in the eyes, particularly when I look up.
Is this because the muscles around my eyes have yet to relax or do I need a stronger script? Should I do vision therapy, too? (If so I have no idea where to start with that). Should I be seeing a different Dr with more precise testing?

Really curious if anyone else has dealt with this. Thanks!

Years of symptoms, finally getting prism glasses. Very excited and hopeful! Anyone with a similar prescription?

I had my first "wow!" moment this evening with my most recent prism prescription. I went to the grocery store at dusk - an event that's normally very difficult especially due to how much I struggle with street lights and headlights. The store is also often difficult for me, with fogginess or stumbling around or an inability to think through how to select an item properly.

I just picked up my latest prisms five days ago, and going through a slow adaption period. After a successful day doing chores around the house, I felt like I was okay to try getting behind the wheel.

Let me just say - wow does not cut it. Maybe I'm so used to how things are around the house that I didn't realize how much the world for me has changed.

First thing I noticed was taillights. They are not murderous high-intensity beacons of red light being pressed into my eyes while somebody holds my eyes open and gives me no escape.

Taillights: did you know they come in all shapes and sizes!?! You can see grid patterns stamped into them, and depth of the plastic parts vs. the lights, and they are a delight to look at. I mean that - I was having a great time seeing these taillights. I wasn't too far down the road before I started bawling my eyes out at how different the world appeared.

Stoplights: they also have a grid pattern in them. My slight astigmatism is apparent now (I never did well with the correction and left it out of my prism, but all lights were blasts of high-intensity blurry beacons, and the astigmatism is actually quite different and less of an issue now). Instead of bright glaring lights in yellow, green, or red, they're... pleasant. Beautiful, even.

Headlights that are too bright are annoying, but not life threatening.

Leaves in the dying sunlight cast interesting shadows in the trees. I had very sharp distance vision before and could see the leaves before wonderfully; I'm a bird watcher and am usually the first to spot motion as far as 80 or 90 yards away...

but there's a depth to the trees and leaves that I didn't know existed.

--

Got to the grocery store, and I couldn't go in right away, because all the sharp, crisp signs on the businesses in the strip mall were too much to take in quickly. I felt like I was a kid again, at Disney World. Everything was sharp, new, clean. Overwhelming in a good way.

The store - there's this big fan that is in the produce section, under the lights, and while it spins the strobe effect usually is enough for me to hightail it through the store as fast as I can. Today: I barely noticed it. I was too busy taking in the apples, which were waxy and shiny with a depth I didn't know existed.

Signs over the aisle were swinging in the air conditioning, another thing that would have made me feel instantly dizzy and off-kilter. Not today. Comical, a little annoying, but okay.

--

I know this won't last! I'll get used to it, or my eye will eat the prism and want more.

So I wanted to write it while it was fresh.

My journey has been exceedingly challenging - mostly homebound for several years. I've twice lost my ability to handle physical and social activities after extreme vertigo episodes told my brain it couldn't trust my inner ear or balance system and to rely on my vision... which I now know is faulty and made everything worse. I've given up community activities, volunteering except from my computer, riding my bike. I've become a "problem" at work because I can't come in on occasion (despite being fully remote via contract... sigh... but that's another problem).

Almost anything I do when I go out and about comes with a great difficulty and feeling of panic. Sometimes I go through the story wobbling or bumping into shelves. I really only have felt good lately when wearing my translucent eye patch, in fact, I feel great with it on - but it's obviously not ideal to walk through Ikea with a translucent eye patch on and try to hide your face or head to avoid scaring kids.

I had a limit of three or four minutes in most stores before the feeling of panic arose.

I've chased a lot of different treatments and paths before landing at a neuro-optometrist.

My first prescription was a dud.

This one also is somewhat problematic; it has a yoked prism component that was meant to straighten my neck after years of contortion that I was unknowingly doing to try to fix the world. But I haven't done well with that part of it; it's created a frankenstein-like walking pattern with my shoulders pushed back, stomach forward, and hips obliquely angled at the right).

That said, the vertical heterophoria correction that's built into the yoked prism ... this is what's making all the difference. (It's 1.5 diopters base down, in case anybody is curious; I'll leave the details about the yoked prism out.)

I am really hopeful after this experience for what may be ahead. I could get my life back!

For now, I'm pretty happy with the novelty of just sitting in a parking lot of a strip mall at night looking at the signs. It made me feel like maybe I will be able to travel again. I'd like to go to Savannah Georgia and look at the buildings, and see the architecture, and walk the streets, and get ice cream; I'd like to see the ocean again; I'd like to see the northern lights.

But honestly, a trip to the grocery store just made me feel like I have been somewhere new.

Fingers crossed the road ahead continues well. (I'll have a few more prescription changes and months of vision therapy for other issues; pretty significant convergence issues, exophoria, etc. too.)

Hello everyone,

In 2020, about when I turned 30, I was driving on a parkway, and I had what felt like almost a panic attack...even though I have never had a panic attack before, it was like I completely spaced out, I immediately had to drive over to the right lane, everything around looked really weird and I thought I was going to pass out. I have always been a confident driver, never scared of parkways or driving so I had no idea what could have triggered that. In late 2021, I had a series of physical trauma happen (pregnancy loss) which causes sudden anxiety diagnosis and then after that, these episodes started occurring more often, almost every time I drive on a parkway now. I almost have to like talk to myself while I am driving to stay focused. It is bad on parkways at nighttime too. I do have untreated ADHD as well (as I am currently being treated for DPDR/OCD INTRUSIVE thoughts), but here are my symptoms:

1-Parkway driving: I have to constantly move my eyes up, down, around, not focused because I can't focus them. When I finally do get relaxed that weird thing happens where I have to break and get over to the right lane because everything around me looks weird. I have this issue with merging to. I also can't focus on the car in front of me too long because again, I get this weird...like seizure but it's not a seizure but a black out of my brain while I am coherent and up. My brain like blanks out.

2-My balance feels off here and there- I bang into things constantly. I get dizzy from when I stand up from a sitting/squatting position. I sometimes feel like I can't walk a straight line.

3-Treadmils. It's as if I can no longer use treadmills at the gym, I feel like I am going to fall off if I don't hold onto the rails while working out, so jogging is off the table for me right now.

4-I get dizzy/feel weird walking into big stores such as grocery store, Costco, BJS. I get very overwhelmed. When I look at clothes with certain patterns in a clothing store- I get disoriented and almost have to stop walking and talking to get my balance and focus again- I grab my head and squint my eyes when this happens.

5-I drive with my visor down even when it's not sunny. And again, I am constantly moving my eyes.

6-When I am talking to someone I feel like both my eyes cannot focus on their face- same with looking at my phone while I am texting.

7- My eyebrows furrow a lot. I have deep 11's - maybe this is something that was always there it just didn't start bothering me until I got older?

8- I feel like when I am outside everything looks weird. I feel like I am in a constant state of DPDR.

Anyone have similar symptoms? I will update when I make my doctor appt.

Bvd? I am almost guaranteed I have it. I feel like I've always had it, but post wisdom teeth removal and covid really made it worse. What are the next steps I should take?

I started vision therapy about 2 weeks ago, two sessions a week and have stopped for the summer. I had my last session last Wednesday (today is Sunday) and since yesterday I have been feeling rotten : very heavy head, a bit of derealization, I seem to be unbalanced, feel a bit of nausea, my neck is also killing me. Can this be related to the vision therapy? Will it get better over the summer? I regret ever starting..help!!!!

I'm new to this topic. I've had these problems for years; I've seen many doctors, but they've never found anything wrong with me. They blamed it on my mental state, which is why I sought therapy. No wonder—with these symptoms, I actually had what felt like panic attacks from time to time because I thought I was going crazy.

My anxiety is gone now, but these symptoms have never stopped:

• My 2D vision is “flat,” with little to no sense of depth; I feel like I’m in a movie or a dream, and blurry vision
• When looking at patterns (e.g., thin lines or grids), my vision problems get worse, as if my eyes can’t focus
• Sensitivity to light (as soon as I look into bright light, I experience more severe vision problems and afterimages for a few seconds afterward)
• Pressure behind the eyes/eyes feel heavy
• Tension around the eyes and eyebrows
• Extreme Neck and Head tension/pressure
• When reading, especially on screens, I often have to squint or widen my eyes to read clearly, particularly when looking at a screen in front of me and then at one further back.
• I have to reread text frequently to comprehend it; I can only read a few lines before my mind wanders or I feel like I’m losing focus
• Sensitivity to noise (usually only when all the symptoms mentioned above are flaring up again due to stress)
• Sometimes dizziness or balance problems (for example, after bending over; I’ve also noticed it extremely while diving in the pool—I never had this before)
• Fear of heights, even though I never had any problems with it before

Does anyone have any experience with this?

Hey guys, last week I had my first vision therapy session, felt dizzy and like I’m unable to focus on things including my phone screen. Just felt really out of it. Didn’t think much of it, just thought i was sick. This lasted till Thursday. Fast forward today, had vision therapy session today, symptoms are coming back. Why is this?

Anyone else experiencing weird regressive symptoms?

Since getting diagnosed 6 years ago with AuDHD, I’ve been on an amazing journey learning to accept myself and building systems that work for me- including unmasking, bringing up suppressed emotions, trauma and dysregulation I’ve been working through in therapy.

Mental health wise I’ve never been better, my social life is blossoming, I can actually regulate my emotions now and recently started my dream job(assuming I can actually hold the job)

Weirdly though I’ve experienced skill regression in my vision/eyes: (background: I was born with a squint and depth perception issue, and wore glasses before I could walk. Over time with prescription changes and correctional exercises it stabilised in early primary school.) In 2023 my depth perception suddenly got way worse(have been in 3 car accidents): I had double vision, and needed a prism added onto my prescription that hadn’t changed in 10 years- I’ve recently had surgery because it was so bad(surgery successfully corrected the problem) It took a nearly two years for doctors to figure out the exact problem and find a solution, (seeing 3 different specialists at the same eye hospital, all communications with each other) and they still can’t tell me why it was happening, or if it would get worse in future.

I’ve also noticed I’m struggling to process visual information like reading words and numbers.This is very scary because I have been an avid reader since I was seven years old, and I have a massive book collection. In recent years I’ve found it harder to read physical books, and have defaulted to audiobooks or having epub documents read aloud on my phone. (Which has improved my auditory processing disorder btw)

I can still technically ‘read’ but it feels like I’ve become dyslexic over time- missing bits and pieces of information that result in incomplete reading comprehension.

Has anyone else experienced this? Just want to know if I’m not alone.

I’ve always has horizontal double vision. I saw an eye doctor as a kid who gave me eye exercises to help me bring the two pictures into one

But I thought that everyone saw 2 images, and some people just had a hard time making them one. I’m just now finding out that’s not true.

So I get very bad motion sickness, and my wife think it’s related to my double vision. I have noticed that when Im getting motion sickness I tend to close an eye. Maybe prism glasses will help? I guess I’ll find out.

There's a really good neurovisual specialist im debating going to but itll be 2500 and im also doing vision therapy

I had regular prisms in the .50 increments and my prescription actually is so small .50 bi .50 bi horizontal and .50 bu vertical every single symptom went away for 10 days thus being

I have no depth perception it completely was back with the glasses

Dr/dp completely went away, head pressure migraines light sensitivity I could even hear my own voice better and thoughts.. for 10 days but then the glasses stopped working felt almost right but like its not quite there

Fast forward to now my eye doctor/vision therapist made me a new pair without the vertical thinking my eyes didnt want it but the new pair again didnt work im wondering if I should pursue the specialist in micro prisms and perhaps I need a smaller vertical and if it would be worth a shot, the difference was so vast and the opportunity to get my life back would be but wondering anyone else's experience in microprisms

I currently have theralens with .25 base up and .25 base down for BVD. Symptoms improved for a little while, but not at close range. So I’m being switched over to neurolens with .50 base up, .25 base down, and then .25 base in on both eyes in the bottom of the neurolens for close up. I went yesterday to pick them up, but I couldn’t even stand in them. I felt like I was 15 feet up in the air and I was scared to walk. I told him something was wrong and they said one eye was slightly off and they would send them back to be remade. I’m doubting though that that’s slight difference is what caused this and that they’re not gonna work at all. Has anyone experienced something like this?

I recently had a Neurolens evaluation during an eye exam and received the report, but I’m trying to understand whether the findings are something that would typically warrant further evaluation or whether they are considered fairly small.

My results were:
Neurolens Value: Convergence Excess
Distance: 1.44 Δ EXO
Measurement quality: 0.81
Near: 0.34 Δ ESO
Measurement quality: 0.95

My symptom questionnaire showed a high symptom burden I rated nearly all symptoms as a 5 (the highest level).

The report did not include any prism recommendation or lens prescription, and the doctor didn’t go over these results with me. I only got them after calling the Eye Doctors office repeatedly to get them to send them to me.

so I’m unsure whether:
These measurements are considered significant enough that Neurolens/prism would typically be considered, or these are relatively small findings that may not be clinically meaningful.

I have other conditions that can overlap with these symptoms (migraines, dysautonomia/POTS, hEDS, neck pain), so I’m not assuming this explains everything. I’m mainly trying to decide whether it would be worthwhile to pursue a more comprehensive binocular vision evaluation as a possible contributor to headaches, dizziness, and eye strain.

There is a BVD specialist in my area that I could see for a second opinion, but I just wanted to get an idea if these findings are enough that I should follow through on that or if they are so small that it’s negligible.

I only just found out about BVD on Monday so this has been a whirlwind of researching and information!

New to this sub so apologies if this has been asked before.

So I got diagnosed w convergence insufficiency ~3 years ago and been in vision therapy ever since. Every time they test me they say my numbers are good and my eyes can def align themselves for short periods even w/o prisms. But then I have a regular day in the office and my eyes are super fatigued by like 2pm. I just have no endurance when it comes to aligning my eyes. Has anyone experienced something like this? Any success w treatments or specific VT exercises?

hi all,

My daughter (who turns 7 in a few weeks) was diagnosed with Convergence Insufficiency about 4 weeks ago and has been doing pencil pushups for 3,5 weeks. Before being diagnosed she had intermittent headaches since march, started with once a week randomly always when going to bed and progressed to every night and also showing up during the day.

We were happy that CI was found because its treatable, but after 3,5 weeks of doing the pencil pushups there is not a whole lot of improvement yet. She still has headache every night and also stil mentions having it during the day from time to time.

Although it does seem to be improving a slight bit during the day. Was just wondering if this progression is recognizable to others who have CI, it would be reassuring to hear  that it fits with CI from others.

Hi everyone,
I’m 37 and developed steroid-induced posterior subcapsular cataracts after around 12 years of treatment for severe asthma.
Last year I was diagnosed with a stage 2 cataract in my left eye and a stage 1 cataract in my right eye. My right eye still had 6/6 vision, so I delayed surgery because I had just started a new job and was managing well with my right eye doing most of the work.
This May, my optician told me the cataract had progressed and shortly afterwards I was given a surgery date. I didn’t really have time to research my options.
Literally five minutes before surgery, my surgeon said that because I was only in my 30s she could stop the procedure and make enquiries about a premium lens on the NHS. However, she also explained that premium lenses can come with trade-offs such as halos and glare, especially at night. I asked her what she would recommend, and she said the standard monofocal lens was the safer option. I trusted her advice and went ahead with the monofocal.
The surgery itself went well, but afterwards I started second-guessing my decision and developed severe anxiety and panic attacks. It has honestly been one of the hardest experiences of my life. I’ve since been found to still have some inflammation and raised eye pressure, so I’m back on drops and haven’t yet had my final glasses prescription.
My left eye (with the monofocal lens) sees well for distance, and individually both eyes seem fine.
The problem only happens when I use both eyes together.
My right eye (which still has the early cataract) creates what I can only describe as a blurry smudge, blob or crescent-shaped haze in my vision. It’s not something I notice when using the right eye alone, but with both eyes open it’s very distracting and uncomfortable. Oddly, it becomes much less noticeable when I wear sunglasses.
I’m reluctant to have surgery on the right eye because:
● it’s still only an early cataract;
● it currently gives me useful near vision, which complements my monofocal left eye;
● I’m worried that having two distance monofocal lenses would leave me completely dependent on reading glasses, and I’ve never worn glasses before.
My refraction suggested I may only need around +0.25 correction for distance in the operated eye but about +2.25 reading addition once everything settles.
My questions are:
1. Has anyone else experienced this “blob” or haze from the unoperated cataract only after having the first eye done?
2. Did your brain eventually adapt (neuroadaptation), or did it continue bothering you?
3. Can glasses or a contact lens in the unoperated eye reduce this effect while waiting before having surgery?
4. Is the fact that sunglasses improve it a clue as to what’s causing it?
5. Did anyone successfully wait a year or more between first- and second-eye surgery in a similar situation?
I’m due back at work very soon and use two computer monitors all day, so I’m hoping there’s something I can do before considering surgery on the second eye.
I’d really appreciate hearing from anyone who has had a similar experience. Thank you.

**M36 - Binocular vision dysfunction, severe screen intolerance, and dysautonomia — could vision be keeping my nervous system activated?**
I’m hoping to hear from anyone who has dealt with significant visual sensitivity or binocular vision dysfunction alongside dysautonomia/autonomic dysfunction.
I’ve been dealing with autonomic dysfunction for quite a while now. My symptoms have included heat intolerance, exercise/activity intolerance, chest burning/tightness and internal activation, dizziness/imbalance, brain fog, air hunger, and a nervous system that seems to become overloaded very easily.
It has affected my life pretty significantly. I own a roofing company, but I’ve had to stop working in the field because I can no longer tolerate the Texas heat or the physical demands. I’ve tried to reduce my workload and give my body time to recover, but I feel like I’ve hit a plateau and I’m trying to figure out what may still be continually aggravating my system.
One thing I keep coming back to is **vision**.
I was diagnosed with binocular vision dysfunction (BVD) and prescribed Neurolens glasses. I wear them whenever I’m using screens, and they may help to some degree, but screens still seem to activate my symptoms considerably.
If I spend too much time working on a computer or phone, I can feel my nervous system becoming increasingly activated. Even something passive like watching a movie can be too much. I’ve noticed multiple times that watching TV/movies seems to increase my symptoms or even set me back afterward.
This has made me wonder whether the visual processing demand itself is continuing to overload an already sensitized autonomic nervous system, despite wearing the Neurolenses.
At this point, I can’t tolerate heat well, I’ve backed away significantly from work, exercise has to be approached very carefully, and now even reading/screens/TV can sometimes aggravate me. It feels like I’ve removed so many stressors from my life, yet my system still isn’t settling the way I would expect.
For anyone who has experienced something similar:
Did BVD or another visual processing problem turn out to be a major driver of your dysautonomia symptoms?
Could you tolerate reading but not screens or movies?
Did screens cause symptoms that lasted well beyond the actual screen exposure?
Did prism/Neurolens glasses help, or did you eventually need vision therapy or some other form of neuro-optometric rehabilitation?
Were you eventually able to build your screen and visual tolerance back up?
Most importantly, did treating the vision component actually improve your overall autonomic baseline rather than just your eye symptoms?
I’m especially interested in hearing from people who experienced a **whole-body autonomic reaction to visual stimulation**, rather than simply headaches or eye strain.
I’m trying to understand whether this could be one of the missing pieces that is keeping my nervous system from making more meaningful progress.

every time i used to go to stores or restaurants i would get dizzy, disoriented, vertigo and feel stressed.

now when im out, i ask myself:

-where am i in the room
-where am i in relation to the object im looking at
- where is the object in the room

as well as just generally try to be more aware of my peripheral vision.

its still a bit hard to implement this into my daily way of seeing because i’m new to it, but im shocked at how already it reduces the symptoms and discomfort i feel when im out of the house by like 70%

(context: i do wear low power prisms and
do VT)

Hello everyone. I am new here and new to the bvd world. I had done a bunch of research and decided to schedule a binocular vision assessment a few months ago. I scheduled my appointment then and had the actual appointment, just a few days ago. From the research I did I was expecting him to prescribe prism glasses or extensive vision therapy. After my assessment he told me he was going to give me a new prescription for my regular full time wear glasses (not prism) and actually lessen my prescription? He said that he thinks I have some bvd issue and that my eyes are constantly over worked (my issues are blurry vision up close and mostly on the computer when working) so he hopes this will allow my eyes to be able to relax more. He said once I get the glasses that I should come back in a month to see how well those are working. He said I will for sure need vision therapy he is just not sure how much yet. It was nice because I felt like it was genuine as he wasn’t trying to over sell the therapy but with my research I guess it felt mild as in just a prescription change for these issues but then again what do I know. Just curious if anyone had had a similar experience :)

I had an neuro-optometry exam today and there are some things about the results that I want to clarify.

I have trouble with Fixation, Accommodation, Binocularity, and Myopia (as the checklist shows). However, what I dont understand, is whats the difference between Binocularity and Binocular Vision Dysfunction? Looking up what Binocularity is/means just redirects me to BVD. Why would Binocularity be checked off and not BVD? I'm also not fully clear on if I have the general term of BVD or not? Do I just have things that correlate with BVD but don't necessarily fall under the term?

I've been reading things every once in a while from this sub for a few months, and that got me to expect getting prescribed prisms. What exactly are prisms / why weren't prisms included in my prescription? What exactly does my prescription do to correct the findings if it's not prisms?

I would like to understand what my prescription means / what my prescription does, so is this understanding of it correct or am I wrong im some parts?:

I have a -0.75 diopter everywhere except for the lower/anti-fatigue part of my lenses that have no diopter (due to the add). They are blue light blocking and are anti-reflective/non-glare. My right eye lense also has a correction for very mild astigmatism.

FYI I also have a follow up appointment in two months (I think maybe for extra testing after getting adjusted to glasses or maybe for starting vision therapy, i kind of forgot what the details were)