Vision Pro Viewing Focal Distance

Max.... Can't answer your "stupid" question (NOT a stupid question), but have some unsolicited advice for you. From your description, you are apparently slightly nearsighted and can easily get by without reading glasses because of this (reading glasses make you nearsighted so you can focus on items nearby). I would also guess you may be approaching age 40 since your eyes can no longer adjust to reading when wearing distance glasses. You should probably go to the doctor and get them to write an Rx with an ADD, then use this. Otherwise, your eyes may suffer fatigue if you simply use your distance Rx.

Kendall... Not sure if this is what you're saying about seeing "near" and "far" items clearly, but "passthrough" video of my surroundings are somewhat blurry (far items?) and augmented reality screens are clear (near items?). I have an ADD of +1.25 and the passthrough looks similar to my vision IRL when wearing my reading glasses, but not sure if that is why the passthrough is blurry. Others on this forum say the passthrough is not clear in any case, so may not be related to my ADD.

Well the big question we all have is what exactly is the focal distance so what prescription would be best? Its suggested in this thread that the focal length is somewhere from 4 to 6 feet. For MOST people, that is likely perfectly good with their normal distance vision glasses. However for me my distance vision glasses are just a tiny bit too strong for 4.5 feet, decent at 6 feet but still slightly strong. That is why I feel the adjustment for the ADD in my prescription is not what I really needed. My distance is -2.00, my distance contacts are -1.75 and my computer glasses are -0.75. I am pretty certain that for me around -1.00 to -1.25 would be perfect for that 4.5 to 6 foot range.

But good luck getting Apple to make that out of the box. Hence my plan to try to get a prescription sorted out for the perfect vision @ 4.5 to 6 feet then I can get them to make my lenses to that strength.

The problem is that the screen is a fixed distance from your eyes. Bifocals have different focal lengths for different distances. This means the bifocal lenses from zeiss with multiple focal distances will render most of the screen out of focus. Since the screens apparent distance is correct for the center of your glasses, where your eye naturally goes and your head turns, so the artificial elements (centered) look clear but the rest of the area blurred.

A bunch of optics engineers missed a basic thing. I’m an autistic genius with learning disabilities and saw the problem and solution immediately at the demo. Apple, give me a call, you need a new design perspective.

The lenses you get when you order them are NOT bi-focals or progressives. Its just single vision lenses but they 'adjust' the distance prescription somewhat based on your ADD factor. What they could never tell me is how much.

Same here! Store demo blurry at distant objects but not close up. The ones I purchased have same problem (pass through looks nothing like commercials). The bigger problem is glare reflections from any brightly lit scene while viewing! I called Apple support and relayed the problem along with green color cast in both right and left outside corners. Agent was super nice and is going to pass info along to development team. He will call me back on the 15th with any helpful info. Here’s hoping for a solution!

David, the screens in your AVP are the same distance from your eyes regardless of what's on the screen. If the passthrough is blurry then it's because the video feed is poor. Perhaps it's a low light issue, or maybe you need to break out the polishing cloth. :-)

(it's never going to be as crisp as the internally generated video)

You're effectively watching a TV. You don't change your glasses just because the program switched from a near scene one to a far one.

Right I think for older folks like me that have progressive glasses we usually have a pretty strong distance vision for driving and the ADD allows us to see closer things like the car dash etc or reading. Personally I just lift my glasses up to read my phone :)

So for us if we had our full distance prescription it would not be good. So like you with contacts (mine are 0.25 less than my distance glasses) it’s worse than with the lenses I got. But personally I would like than they took away to compensate for the ADD and it drives me nuts that nobody will actually tell me what it really is.

I am gonna head to my eye doctor to have her measure the inserts and then make me a new VR prescription and have Apple make that. Probably 0.25 less than whatever Apple actually made me.

Alancito, Great info!

This explains why my +1.75 ADD lens is indistinguishable from my +1.25 ADD lens (referring to the 6' focal distance). There is no way they actually use those values for the inserts... probably a small fraction (e.g. +0.6 vs +0.4 as a guess). This difference would be negligible IRL.

Thanks. I feel that I leaned about how glasses work much more than I ever wanted in my life :) but scientific curiosity keeps bugging me…

if somebody has perfect “reading eyes” and only uses glasses for distance, should then ADD be exactly equal but position to the distance glasses correction? So, eg, if somebody uses -2/-2 distance glasses, and has perfect close vision, then ADD should be 2/2, to indicate that 0 correction is needed for reading distance…

@david that is a really good point and I must have missed that about reading distance ADD. I don’t have a prescription with a 2.00 ADD because I have never needed it and with that much it’s too much for reading the dash in the car. But yeah maybe that is what I need to do is to get that prescription updated as I did have that before as it was what they did for my first set of progressives.

Either way I have to back to my eye doctor :)

My original prescription was -2.25/-0.75 (without listing any ADD, since I do not use reading glasses). After I asked to add ADD, they added +2.25/+2.25. I guess, I will order and see :) Probably ordering without ADD would be very wrong, as I need full adjustment to see well at reading distance.

The pass through cameras being blurred was the first thing I noticed during the demo.

richard700 wrote: "...One thing I did find - the resolution of the pass-through cameras does not seem as good as real life..."

Let Apple know here:

Feedback - Apple Vision Pro - Apple

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I have the same question and spent time on the phone with Apple and they could not answer my question at all.

It is really unclear on the Apple web site that discusses the prescription requirements for the Vision Pro if it is best to use your full distance prescription so the focal distance is going to be distance or if something more middle distance is better:

Using Apple Vision Pro with vision prescriptions and vision conditions - Apple Support

There it says to not use computer prescriptions so I ordered my lenses with my -2.00 for distance and 1.25 ADD and the site said it would adjust it down to reduce eye fatigue and I cannot find any information that says exactly what mine was reduced to. Is it just a little, or all the way down to -0.75? Trying them out at the moment it feels to me like its just a bit too strong as I have a different prescription for computer work and with that I can see most middle distance stuff just fine. It is -0.75 mono vision.

Then the same link above has conflicting information because it says that if you need reading glasses, you can get reading glass inserts for the Vision Pro. Makes no sense if you can see fine in the distance? If you can see fine in the distance and need readers for close up work, then why would you ever need reading lense inserts for the Vision Pro?

So seems to me perhaps my computer prescription would have been better? Tempted to test the theory by ordering with by computer single lense prescription and see. But Apple and ZEISS were not able to answer it for me, and would not be able to tell me exactly WHAT my lenses are?

I have used it with my -1.75 contacts and it seems decent, but I wish I had my older -1.5 ones to try. But my contacts always dry out so I don't like using those and I have to have 1.00 readers if I have those installed to use the computer.