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Prism correction on Apple Vision Pro

Although I'm disappointed that the ZEISS Optical Inserts cannot provide vision correction for prism, I'm still hopeful that prism adjustments could be done in software by shifting the images.

Unfortunately, I can find no indications of a setting for this in the VisionOS simulator, so I may be out of luck until the next software update.

Another possibility, for moderate horizontal prism, may be to use a prescription with sphere but no prism, and fiddle with the Interpupillary distance, which is listed in the Tech Specs as 55-75mm.

Apple TV HD

Posted on Jan 19, 2024 4:05 PM

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Posted on Jan 31, 2024 6:09 AM

Same for me. It's really a shame.

ZEISS does know so much better and should have advised here.

Also, Apple is all about health and prism is such an important topic. It might even be doable to detect the need for prism correction with the Vision Pro, same as the Apple Watch can detect heart issues.

Shifting images is a smart idea. 👍


I'm coming from a family of opticians specialized in that field.

So what Apple wrote here Using Apple Vision Pro with vision prescriptions and vision conditions - Apple Support

"A very small percentage of people have a prism value added to their glasses prescription."

That's just wrong. Terribly wrong.

Sure it depends on demography, but in Central Europe about 60-70% of people would benefit from prism correction. About 30% do have health and vision issues that could be solved with prism added to their glasses. And only a small percentage - that's probably the number referenced from the support article - does actually know they need prism values and can solve their health problems that way.


I really hope that Apple improves here. They could reach and improve so many peoples lives.

6 replies
Question marked as Top-ranking reply

Jan 31, 2024 6:09 AM in response to dmi0

Same for me. It's really a shame.

ZEISS does know so much better and should have advised here.

Also, Apple is all about health and prism is such an important topic. It might even be doable to detect the need for prism correction with the Vision Pro, same as the Apple Watch can detect heart issues.

Shifting images is a smart idea. 👍


I'm coming from a family of opticians specialized in that field.

So what Apple wrote here Using Apple Vision Pro with vision prescriptions and vision conditions - Apple Support

"A very small percentage of people have a prism value added to their glasses prescription."

That's just wrong. Terribly wrong.

Sure it depends on demography, but in Central Europe about 60-70% of people would benefit from prism correction. About 30% do have health and vision issues that could be solved with prism added to their glasses. And only a small percentage - that's probably the number referenced from the support article - does actually know they need prism values and can solve their health problems that way.


I really hope that Apple improves here. They could reach and improve so many peoples lives.

Feb 4, 2024 1:13 PM in response to dmi0

I have a small prism in my presciption and for me it is not noticeable. I initially tried to order the lenses with my original prescription and then order was cancelled 3 hour later (just the lenses). After explaining to my eye doctor what I was doing, they provided the prescription without the prism setting and then I was successfully able to submit the order.


I have been using the Vision Pro for about 3 days now, the at the lack of prism in the lenses is not bothering me.

Feb 2, 2024 12:47 PM in response to Marc Marshall

You are not talking to Apple here


This is a user helping users with tech questions forum, we are not apple and apple do not read your posts here


if you wish to complain to them use

Product Feedback - Apple


if you wish their support

 Get Support (apple.com)

And or

 Contact - Official Apple Support

And or

Contact - How to Contact Us - Apple

Or

Genius Bar Reservation and Apple Support Options - Apple



Feb 17, 2024 1:58 AM in response to WDNB

I have a small prism in my left eye .75 diopter. I tried the demo for 30 mins and felt fine. I ordered a Vision Pro and hopefully Apple can allow us to adjust the screen slightly up or down in one eye. My eyes don’t like to look down and center. The Vision Pro keeps my eyes looking straight unlike looking at my phone. I’m hoping using the VP can help my eye muscles relax. Maybe I can really limit phone usage.


I was thinking about getting the ZEISS inserts then swap out their lens for my prism lens (use my co2 laser to cut my lens to fit the magnetic insert. I’m guessing the eye tracking might be affected if that will be done. Maybe during calibration I can look slightly off center.

Feb 2, 2024 12:16 PM in response to Funkybit

I was also unable to buy a Vision Pro due to the prism restriction, and your comment about how prevalent the potential need for prism correction is is useful, as it was hard to find any statistics for the US. I only knew anecdotally that both myself and my significant other have a small amount of prism correction, and some strip-mall shops don't have the gear to test for the need (although some do).


Ironically, the only place I did find any hard numbers was the info pop-up on the Zeiss page that lets you check whether your prescription can be made as optical inserts. That info says "less than 5%" of eyeglasses made in the US. Which, assuming that "less than" means somewhere between 4.1% and 4.9%, means it's rather disingenuous to call it "rare"; roughly 1 out of 25 glasses-wearers (and therefore roughly 1 out of 40 of all US adults) is certainly uncommon, but it's rather a stretch to call it "rare" (which in my mind is <1%).


Also ironic that the help page outlines that there are Accessibility features for people with more uncommon binocular vision problems (lazy eye, drooping eye, or even just one eye), allowing them to use the headset either with their hands or by tracking just one eye of their choice. You just can't get prescription inserts with prism (or very strong prescriptions for severe myopia or astigmatism).


Personally, I just wish that Apple had mentioned it (or made that Zeiss page available) prior to the pre-order, so I didn't have to get up at 5am only to realize I was unable to use it.


Now that a little more info, and some reviews, is available, it does seem like this is not an unaddressable problem. Since the eye tracking is inside the lenses, and is calibrated prior to use, that end of things should just be able to adjust to wherever your eyes are pointing as long as it's consistent (and worst case you could get all of the prism offset in one lens and set it to only track your other eye). One review did mention that when Vision OS didn't have the correct prescription set it wasn't noticeable but did result in slight nausea during use, so presumably the OS is adjusting what's on the screens for the prescription in some way; that software integration may be why prism isn't supported. It's also possible that Zeiss isn't bothering with less common lens designs since Apple is already selling more headsets than they can manufacture anyway.

Prism correction on Apple Vision Pro

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