Hello all!  What an informative group.  Hopefully, some of you will
share your advice on the following...

I am engaged in purchasing a new pair of Silhouette rimless eyeglasses,
and have spent considerable time learning about various lens choices.
Time and again, I have heard and read great things about Hoya, so I
intend to ask that my optician use a high-end Hoya product.  To this
end, I have a quick question regarding the suitability of their
high-index offerings...

I am interested in their 1.70 EYRY product.  My single vision Rx,
however, is as follows:
R: -1.25, -1.00, 105
L:  -1.75, -.75, 73
Lens size = 46.

Owing to my light prescription, my optician has frowned upon the 1.70
EYRY option, saying that the resulting thinness would produce a
dangerous final product.  I understand that high-index might, indeed,
be overkill for an already-thin prescription, but I am unsure whether
my optician's concerns have merit (or are driven merely by the
difficulty--but not impracticality--of producing the product).  I have
spoken to a Hoya Vision representative in Dallas, who said that the 1.7
EYRY product would be a fantastic choice for all prescriptions, and
certainly would accommodate my numbers above.  This was also affirmed
today by a General Manager of a Hoya Lab, who affirmatively stated that
the EYRY would work for me (overkill, notwithstanding).  Based on my
own readings, I assume that this lens would need to be specially-ground
so as not to produce a center measurement failing impact resistance...

To date, my optician has pushed Hoya's Phoenix product.  I appreciate
the fine optics and impact resistance of Trivex, but I am interested in
the "latest/greatest" optical technology (which, to me means "insanely
thin" with above-average optics) that money can buy for my low Rx, and
believe that Phoenix would not achieve my uber-thinness goals.  Impact
resistance is not a big concern, as I will use the product in an
executive office setting (i.e. not during sports, etc).  I would like
to end up with a pair of glasses with ~2mm lens edge (comparable to my
drill mount Maui Jim sunglasses).  On this drill mount, I would
probably deem anything much over 3mm as undesirable...  IMHO, a few
hairs' difference is noticeable in these drill mounts...

Having shared my concerns and goals, I would appreciate any brief
advice from you all re: the suitability of a high-index product for
this type of application.  Along these same lines, if you happen to
alternatively recommend the Phoenix (Trivex) product, I would also
appreciate this feedback, too.

Thank you!!
CD

PS:  Aside question...  The lens on my ten year old glasses have a VERY
faint yellow hue (you can see it if you place a white sheet of paper
under them).  Most people cannot see it, but I definitely can (call me
"obsessive" if you havent already!) and would like to avoid this hue on
my next pair of eyeglasses.  Any idea what causes this faint
coloration?  These glasses have either plastic or polycarb, I guess,
and I may have some type of coating...