Can SV lenses be upside down?

[Camelid]

I was wondering if SV lenses have to be oriented in a certain way, or if they can be upside down.

Since I am very myopic, I can see the little symbols (micro engravings) on my new pair of glasses. I have drawn them in the attached diagram (jpg).

The diagram is head-on, as if you are looking at me. The lenses are Essilor SV 360 "digital". As you can see, the left lens (right lens in the diagram) is upside down. My question is, with single-vision lenses, does the orientation of the lens matter? Do the circles have to be 180 degrees (they are slightly angled), and the lens right-side-up? Or is the lens intentionally upside down because of my astigmatism?

My old glasses prescription was:

R: -12.00 -0.75 066
L: -12.50 -1.00 172

My new glasses prescription is:

R: -11.75 -1.00 072
L: -13.75 -025 169

PD is 63 for both sets of glasses.

I have had these glasses for three days, and so far, have not adjusted to them (my vision, both near and far, is better with my old glasses).

Forgive me for posting; I realize this is a board for eye-care professionals, so if you do not want to answer my question, I understand. If you could be so kind as to refer me to a forum that could answer this question, I would appreciate it.

Thanks very much.

[Judy Canty]

This forum is for Eyecare Professionals. Consumers are allowed to post in the Just Conversation forum and non-optical topics only. Please be aware that any questions involving optics or eyecare may be removed. These kinds of questions should be discussed with a qualified eyecare professional who has examined you and is familiar with your situation.

This is the best advice you'll get here.

[braheem24]

My compliments on the artwork!

Now go back to where you purchased the glasses ASAP.

[Camelid]

My compliments on the artwork!

Now go back to where you purchased the glasses ASAP.

Rather utilitarian, I suppose, but you get the idea...

Yes, I am going back to the shop, likely tomorrow, to pick up my second pair of glasses, and will discuss this with them. I was hoping to go back armed with a bit of information, but I respect that this board is for professional discussion only. I will report back as to where the micro engravings appear on the second pair.

Thanks.

[Camelid]

In case anyone is interested, here is a new diagram of where the micro engravings appear on my second pair of glasses. The owner/staff at the shop said the micro engravings don't mean anything and the lenses are marked with ink to facilitate edging; they ignore the micro engravings.

If you're curious how my vision is with these; objects appear much narrower than the first pair (the drive on the suddenly-narrow road home was a bit disconcerting), but focus is a bit crisper. Still wonky, though. However the staff said it may take as long as two weeks to adjust to the new prescription.

Just FYI.

Thanks.

[Spexvet]

They look inside out to me.

[kcount]

can we say lens spin? one wonders if the Axis is correct. Spent an awful lot on FF lenses to have someone tell you the markings don't mean anything? Really, so then why are they there?

[Judy Canty]

Please don't feed the consumers!

[Spexvet]

Please don't feed the consumers!

Feed them to whom?