Modification Resin eye modifications?

Personally, I don't see why that kind of mod would be a problem since you aren't altering aesthetic. Some eye makers even offer options for different shape. What you are asking can be very simply done by pouring less resin. If I was asked to do that for made-to-order, I would have no problem. For in-stock eyes, sanding should do but I think it's very tricky since resin is hard and eyes are small and in difficult shape to have a good grip.

 

Once You pay for something legitimately, it's yours to do with as you please (I am solely speaking of objects and not living beings). Even if it is a historical art piece and you want to burn it in fire, for a short video, that would be your choice to make. There will always be people who are offended, even just because a stranger eats things the other doesn't eat. As long as you are not physically harming other living beings, you are not doing anything wrong.

It's also not rude to ask if an eye maker, can accommodate a request. That's how custom made items are usually made. There was a lady who used to sell custom made eyes for dolls, but didn't offer low dome, half sphere, low profile eyes, so I asked (politely) if she could make some for me. She ended up making more than ten different custom eyes for me.

Don't be afraid to ask politely first, if they would be willing to make a particular eye shape for you. However, if they can't or don't want to. It is perfectly fine for you to modify the eyes, if you choose to purchase them. Hopefully that's helpful or at least reassuring. Congrats on your Dolores, I always admired him from afar (I gave up purchasing more giant resin dolls a long time ago). (:

 

Ashuradark is my go-to for no-dome eyes; custom orders are possible with both listed colors and custom colors, and they're on the affordable end for custom eyes.

As for asking: I'd say that so long as you're not demanding, that there's nothing wrong with asking about low or no dome options! You can explain which eyes you love and that they wouldn't fit your doll, and ask if they can make them with a smaller dome.

For modifying: Once you've bought something, it's yours to do with as you please. No one has any right to be unhappy about that unless you've custom ordered it and told them it was exactly how you wanted it, but you lied - and then they only have the right to be unhappy about being lied to. Yes, handmade eyes are often works of art. They're still yours to do with as you please once you buy them, and this is a hobby known for its customizations. Just make sure you either have a new sealant ready to layer over the top or you polish them to a shine, so you don't have any scratches left!

 

No dome means the iris's dome doesn't go higher than the sclera (the part that's usually white). Low dome still has a little bit of roundness to it, but no dome is just the base eye shape. It's what I've got for my SOOM boys, and what most Telesthesia SDs need (according to my experience and other owner feedback). I really hate when the eye doesn't sit flush in the socket, so it's what I default to requesting when I order custom. Downside for dolls that can take a higher dome is that it doesn't reflect light quite as realistically, since natural eyes have an iris dome.

Ashuradark is on Instagram with precisely that username, but her seller Instagram and Ko-fi accounts are ashuradarkeyes. She used to be on Etsy, but the fees got too expensive and she didn't want to have to raise her prices.

 

RingoAme (IG/etsy) and Secret Art Studio can also do custom eyes w/black sclera and very low dome.
(I believe RingoAme's commissions are temporarily closed right now to prepare for Resin Rose, but her eyes are very good quality and worth waiting for IMO!)

 

Etsy's search is really garbage anymore, so it's no wonder if you didn't see anything! (also, artists make more money selling off platform than from selling via Etsy, so I try to comm them over IG or their personal websites when possible. I've commissioned both RingoAme and Secret Art Studio and both of them make very nice eyes!)

 

I just wanted to chime in to give my vote to Ashuradark as well, since you've already gotten answers to your original question.
You can find her shop here or you can contact her on instagram. She's a lovely person and her eyes are very high quality. I just received my custom commissions from her a few days ago, and I had a few very specific requests that she managed to handle without any issues.