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Toyman
medicine forum beginner
Joined: 24 Jun 2006
Posts: 5
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 Posted: Sat Jun 24, 2006 5:17 pm Post subject:
1.6 High Index Help!!!!!
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I recently purchased a pair of glasses at Walmart....They were the
polycarbonate with their standard ar coating.The vision was great
looking straight ahead,however,the peripheral vision was terrible &
ultimately I ended up returning them.I am now in the process of trying
another pair through my optometrist who is suggesting Essilor 1.6
lenses w/Crizal Alize......With what little I do know about lenses,this
doesn't sound like the best option for me (O.D. -4.75 -0.75 145)
(O.S. -5.00 -0.50 20). I thought either Hoya Eyas 1.6 W/Superhivision
AR or AO XT16 1.6 W/Teflon AR would be a better match for me(both
finished versions).....I am torn between the two...it seems like the
Hoya AR coating is better than the Teflon but the AO XT16 seems like a
better lens. I am very picky about clear sharp vision & cannot tolerate
much in the way of distortion ie "fun house effect" I get dizzy &
disoriented if the appearance is not flat & natural looking. Any
thoughts would be appreciated!
Thanks!
Ricky |
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Mark A
medicine forum Guru Wannabe
Joined: 30 Apr 2005
Posts: 226
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| Posted: Sat Jun 24, 2006 7:27 pm Post subject:
Re: 1.6 High Index Help!!!!!
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"Toyman" <alienbratwurst@yahoo.ca> wrote in message
news:1151169474.367126.119040@u72g2000cwu.googlegroups.com...
| Quote: | I recently purchased a pair of glasses at Walmart....They were the
polycarbonate with their standard ar coating.The vision was great
looking straight ahead,however,the peripheral vision was terrible &
ultimately I ended up returning them.I am now in the process of trying
another pair through my optometrist who is suggesting Essilor 1.6
lenses w/Crizal Alize......With what little I do know about lenses,this
doesn't sound like the best option for me (O.D. -4.75 -0.75 145)
(O.S. -5.00 -0.50 20). I thought either Hoya Eyas 1.6 W/Superhivision
AR or AO XT16 1.6 W/Teflon AR would be a better match for me(both
finished versions).....I am torn between the two...it seems like the
Hoya AR coating is better than the Teflon but the AO XT16 seems like a
better lens. I am very picky about clear sharp vision & cannot tolerate
much in the way of distortion ie "fun house effect" I get dizzy &
disoriented if the appearance is not flat & natural looking. Any
thoughts would be appreciated!
Thanks!
Ricky
|
Polycarbonate has the worst optical properties of any commercially available
lens that is commonly dispensed. It is especially troublesome with
peripheral vision on aspheric lens designs and progressives. You did not
state exactly which Essilor lens design you were given, but I am assuming
that it was probably aspheric with your Rx.
Essilor 1.60 plastic is much less prone to chromatic aberration and
peripheral blurring than polycarbonate. The Crizal Alize AR is coating is
generally well regarded as durable and easy to clean (compared to other AR
coatings).
Hoya single vision lenses are available in a standard Hi-lux spheric, or an
improved Nulux aspheric which results in less deformation in the periphery
of the lens. I am not sure how this relates to "Supervision" but if it is
the same as Nulux, then it might be better than the standard Essilor
aspheric design. Ask your optician about what Supervision means, or contact
hoyavisioncare@hoyavision.com for more information.
The Hoya Eyas 1.6 has very good abbe value of 41 compared to Essilor 1.60
index which is 36 (the higher the abbe value the lower the chromatic
aberration which can affect peripheral vision). Polycarb has an abbe value
of 30 (not acceptable in my opinion).
If you think you need a lens with safety properties (high impact resistance
and tensile strength) of polycarbonate, but with excellent optical
properties (abbe value 43), I would highly recommend the Hoya Phoenix
(Trivex) lens material. At 1.53 index, Trivex is not as quite thin as 1.6 so
there may be cosmetic concerns relating to edge thickness if that is a big
issue with you. |
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Anon E. Muss
medicine forum Guru Wannabe
Joined: 22 May 2006
Posts: 136
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| Posted: Sat Jun 24, 2006 8:56 pm Post subject:
Re: 1.6 High Index Help!!!!!
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On 24 Jun 2006 10:17:54 -0700, "Toyman" <alienbratwurst@yahoo.ca>
wrote:
| Quote: | I recently purchased a pair of glasses at Walmart....They were the
polycarbonate with their standard ar coating.The vision was great
looking straight ahead,however,the peripheral vision was terrible &
ultimately I ended up returning them.I am now in the process of trying
another pair through my optometrist who is suggesting Essilor 1.6
lenses w/Crizal Alize......With what little I do know about lenses,this
doesn't sound like the best option for me (O.D. -4.75 -0.75 145)
(O.S. -5.00 -0.50 20). I thought either Hoya Eyas 1.6 W/Superhivision
AR or AO XT16 1.6 W/Teflon AR would be a better match for me(both
finished versions).
|
Some of this is personal preference here:
I don't like the appearance of the Sola Teflon A/R coating. The
residual blue is too strong, IMHO (although Sola thinks it is
"pleasing"). I haven't prescribed enough of these to know whether, in
the long run, it is as durable as others.
I think you can't go wrong with Essilor's Crizal Alize, Hoya's Super
HiVision or I-Coat's Vivix Stainless. Zeiss' high-end A/R coats are
excellent too. I hardly ever have patients that get these come back
complaining that the coating has scratched up, peeled, etc.
| Quote: | ....I am torn between the two...it seems like the Hoya AR coating is
better than the Teflon but the AO XT16 seems like a better lens. I am
very picky about clear sharp vision & cannot tolerate much in the way
of distortion ie "fun house effect" I get dizzy & disoriented if the
appearance is not flat & natural looking. Any thoughts would be
appreciated!
|
I don't find there to be a huge difference between the modern
progressives for the vast majority of patients.
For a prescription like yours, my first choice would be to fit you in
a 1.67 modern progressive like a Varilux Panamic with Crizal Alize,
but a Kodak Precise/Concise with Vivix Stainless works usually just as
good for the vast majority of my patients. 1.67 Zeiss Gradal are
"tops" too.  Essilor has a 1.74 progressive with A/R coat out now
too.
FWIW, I'm not a big fan of Sola or AO progressives, probably because I
had bad experiences with the Percepta and the Compact respectively. |
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Mark A
medicine forum Guru Wannabe
Joined: 30 Apr 2005
Posts: 226
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| Posted: Sat Jun 24, 2006 10:14 pm Post subject:
Re: 1.6 High Index Help!!!!!
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"Anon E. Muss" <anonymous@example.org> wrote in message
news:679r92dqo5jini8k79ktv363483i96mpu7@4ax.com...
| Quote: | Some of this is personal preference here:
I don't like the appearance of the Sola Teflon A/R coating. The
residual blue is too strong, IMHO (although Sola thinks it is
"pleasing"). I haven't prescribed enough of these to know whether, in
the long run, it is as durable as others.
I think you can't go wrong with Essilor's Crizal Alize, Hoya's Super
HiVision or I-Coat's Vivix Stainless. Zeiss' high-end A/R coats are
excellent too. I hardly ever have patients that get these come back
complaining that the coating has scratched up, peeled, etc.
I don't find there to be a huge difference between the modern
progressives for the vast majority of patients.
For a prescription like yours, my first choice would be to fit you in
a 1.67 modern progressive like a Varilux Panamic with Crizal Alize,
but a Kodak Precise/Concise with Vivix Stainless works usually just as
good for the vast majority of my patients. 1.67 Zeiss Gradal are
"tops" too. Essilor has a 1.74 progressive with A/R coat out now
too.
FWIW, I'm not a big fan of Sola or AO progressives, probably because I
had bad experiences with the Percepta and the Compact respectively.
|
The original poster Rx does not specify any add (reading) power. Also, the
AO XT16 that was mentioned is a SV lens design from American Optical. So I
don't think the OP is looking at progressives. |
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Toyman
medicine forum beginner
Joined: 24 Jun 2006
Posts: 5
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| Posted: Sat Jun 24, 2006 10:19 pm Post subject:
Re: 1.6 High Index Help!!!!!
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Mark A wrote:
| Quote: | "Anon E. Muss" <anonymous@example.org> wrote in message
news:679r92dqo5jini8k79ktv363483i96mpu7@4ax.com...
Some of this is personal preference here:
I don't like the appearance of the Sola Teflon A/R coating. The
residual blue is too strong, IMHO (although Sola thinks it is
"pleasing"). I haven't prescribed enough of these to know whether, in
the long run, it is as durable as others.
I think you can't go wrong with Essilor's Crizal Alize, Hoya's Super
HiVision or I-Coat's Vivix Stainless. Zeiss' high-end A/R coats are
excellent too. I hardly ever have patients that get these come back
complaining that the coating has scratched up, peeled, etc.
I don't find there to be a huge difference between the modern
progressives for the vast majority of patients.
For a prescription like yours, my first choice would be to fit you in
a 1.67 modern progressive like a Varilux Panamic with Crizal Alize,
but a Kodak Precise/Concise with Vivix Stainless works usually just as
good for the vast majority of my patients. 1.67 Zeiss Gradal are
"tops" too. Essilor has a 1.74 progressive with A/R coat out now
too.
FWIW, I'm not a big fan of Sola or AO progressives, probably because I
had bad experiences with the Percepta and the Compact respectively.
The original poster Rx does not specify any add (reading) power. Also, the
AO XT16 that was mentioned is a SV lens design from American Optical. So I
don't think the OP is looking at progressives. |
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Toyman
medicine forum beginner
Joined: 24 Jun 2006
Posts: 5
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| Posted: Sat Jun 24, 2006 10:57 pm Post subject:
Re: 1.6 High Index Help!!!!!
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Toyman wrote:
| Quote: | Mark A wrote:
"Anon E. Muss" <anonymous@example.org> wrote in message
news:679r92dqo5jini8k79ktv363483i96mpu7@4ax.com...
Some of this is personal preference here:
I don't like the appearance of the Sola Teflon A/R coating. The
residual blue is too strong, IMHO (although Sola thinks it is
"pleasing"). I haven't prescribed enough of these to know whether, in
the long run, it is as durable as others.
I think you can't go wrong with Essilor's Crizal Alize, Hoya's Super
HiVision or I-Coat's Vivix Stainless. Zeiss' high-end A/R coats are
excellent too. I hardly ever have patients that get these come back
complaining that the coating has scratched up, peeled, etc.
I don't find there to be a huge difference between the modern
progressives for the vast majority of patients.
For a prescription like yours, my first choice would be to fit you in
a 1.67 modern progressive like a Varilux Panamic with Crizal ASo lize,
but a Kodak Precise/Concise with Vivix Stainless works usually just as
good for the vast majority of my patients. 1.67 Zeiss Gradal are
"tops" too. Essilor has a 1.74 progressive with A/R coat out now
too.
FWIW, I'm not a big fan of Sola or AO progressives, probably because I
had bad experiences with the Percepta and the Compact respectively.
The original poster Rx does not specify any add (reading) power. Also, the
AO XT16 that was mentioned is a SV lens design from American Optical. So I
don't think the OP is looking at progressives.
|
Sorry for the confusion.......This is for a single vision lens & I
believe the Essilor product he is recommending is their Thin and Light
1.6........Also, the frame is fairly small, Safilo E7066. So with this
additional info, would I be better suited to the Hoya Eyas 1.6 (Nulux
EP) with their "superhivision AR coating" or AO XT16(Finalite),
Considering my main concerns are clear & natural looking vision with
minimal peripheral distortion. I have also heard of a material called
Spectralite, would that be a consideration?
The Hoya Phoenix & Trivex mentioned by Mark, sound interesting also,
although high impact resistance is not a concern for me.
Thanks for any info!
Ricky |
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Mark A
medicine forum Guru Wannabe
Joined: 30 Apr 2005
Posts: 226
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| Posted: Sat Jun 24, 2006 11:46 pm Post subject:
Re: 1.6 High Index Help!!!!!
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"Toyman" <alienbratwurst@yahoo.ca> wrote in message
news:1151189852.973777.99410@i40g2000cwc.googlegroups.com...
| Quote: |
Sorry for the confusion.......This is for a single vision lens & I
believe the Essilor product he is recommending is their Thin and Light
1.6........Also, the frame is fairly small, Safilo E7066. So with this
additional info, would I be better suited to the Hoya Eyas 1.6 (Nulux
EP) with their "superhivision AR coating" or AO XT16(Finalite),
Considering my main concerns are clear & natural looking vision with
minimal peripheral distortion. I have also heard of a material called
Spectralite, would that be a consideration?
The Hoya Phoenix & Trivex mentioned by Mark, sound interesting also,
although high impact resistance is not a concern for me.
Thanks for any info!
Ricky
|
There is no need to apologize, it was very clear that you were talking about
SV lenses. The Rx left no doubt about that (thank you for posting your Rx).
Spectralite and Finalite are proprietary lens materials from Sola (who now
owns AO). Spectralite is 1.54 index with abbe value of 47 and Finalite is
1.60 index with abbe value of 42 (pretty close to the Hoya Eyas 1.6 with an
abbe value of 41). The Essilor 1.6 has an abbe value of 36. The higher the
abbe value, the lower the chromatic aberration. Polycarb has an abbe value
of 30.
Spectralite (like Trivex) has a relatively high abbe value, but you will
have slightly thicker lenses at the edges (for a minus Rx) compared to
higher index lenses because of the 1.54 index. If edge thickness is not a
concern, then Sola Spectralite is a very good choice, as is Trivex (with the
added strength). But since the Safilo E 7076 is a traditional frame (not a
drill mount) then strength of lens is not quite as important (unless you
wear your glasses while playing sports or in hazardous areas).
It looks like either the Finalite 1.60 (Sola or AO) or the Hoya Eyas 1.60
would be the best choices for your Rx. I might be tempted to go with the
Hoya if you knew it was the Nulux aspheric model. Otherwise it would be a
toss-up between Sola/AO 1.60 Finalite or the Hoya Eyas 1.60. |
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Anon E. Muss
medicine forum Guru Wannabe
Joined: 22 May 2006
Posts: 136
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| Posted: Sun Jun 25, 2006 5:21 am Post subject:
Re: 1.6 High Index Help!!!!!
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On Sat, 24 Jun 2006 16:14:23 -0600, "Mark A" <nobody@nowhere.com>
wrote:
[snip]
| Quote: | The original poster Rx does not specify any add (reading) power. Also, the
AO XT16 that was mentioned is a SV lens design from American Optical. So I
don't think the OP is looking at progressives.
|
Sorry I missed that.
That makes things a lot easier. I would go with pretty much any 1.67
(or 1.74) aspheric plastic design; I have had good luck with Optima's
HyperAspheric, Pentax's UltraThin 1.67 and Seiko's 1.67 aspheric SV.
Keep the frame as small as possible and measure the vertical PD/optic
centers/distance OCs.
For A/R coat, as I said before Crizal Alize (requires Essilor 1.67 or
1.74 lens), or I-Coat's Vivix Stainless are my two favorites in
6/2006.
With SV 1.67 aspheric plastic, I really don't think there is *any*
real world difference in the various types and usually have the lab
select it. |
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Toyman
medicine forum beginner
Joined: 24 Jun 2006
Posts: 5
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| Posted: Sun Jun 25, 2006 2:55 pm Post subject:
Re: 1.6 High Index Help!!!!!
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Mark A wrote:
| Quote: | "Toyman" <alienbratwurst@yahoo.ca> wrote in message
news:1151189852.973777.99410@i40g2000cwc.googlegroups.com...
Sorry for the confusion.......This is for a single vision lens & I
believe the Essilor product he is recommending is their Thin and Light
1.6........Also, the frame is fairly small, Safilo E7066. So with this
additional info, would I be better suited to the Hoya Eyas 1.6 (Nulux
EP) with their "superhivision AR coating" or AO XT16(Finalite),
Considering my main concerns are clear & natural looking vision with
minimal peripheral distortion. I have also heard of a material called
Spectralite, would that be a consideration?
The Hoya Phoenix & Trivex mentioned by Mark, sound interesting also,
although high impact resistance is not a concern for me.
Thanks for any info!
Ricky
There is no need to apologize, it was very clear that you were talking about
SV lenses. The Rx left no doubt about that (thank you for posting your Rx).
Spectralite and Finalite are proprietary lens materials from Sola (who now
owns AO). Spectralite is 1.54 index with abbe value of 47 and Finalite is
1.60 index with abbe value of 42 (pretty close to the Hoya Eyas 1.6 with an
abbe value of 41). The Essilor 1.6 has an abbe value of 36. The higher the
abbe value, the lower the chromatic aberration. Polycarb has an abbe value
of 30.
Spectralite (like Trivex) has a relatively high abbe value, but you will
have slightly thicker lenses at the edges (for a minus Rx) compared to
higher index lenses because of the 1.54 index. If edge thickness is not a
concern, then Sola Spectralite is a very good choice, as is Trivex (with the
added strength). But since the Safilo E 7076 is a traditional frame (not a
drill mount) then strength of lens is not quite as important (unless you
wear your glasses while playing sports or in hazardous areas).
It looks like either the Finalite 1.60 (Sola or AO) or the Hoya Eyas 1.60
would be the best choices for your Rx. I might be tempted to go with the
Hoya if you knew it was the Nulux aspheric model. Otherwise it would be a
toss-up between Sola/AO 1.60 Finalite or the Hoya Eyas 1.60.
|
Thanks for all the input!.......I believe I have decided to go with the
Hoya Eyas 1.6 .....unfortunately here in the U.S. Nulux does not appear
to be available, However, I still feel that the Hoya AR is slightly
superior to the Sola Teflon....it also has a "lifetime of the
prescription" warranty vs 2 years on Teflon (my last prescription
lasted approx 8 years). So these reasons have given the edge to Hoya.
Thanks Again!
I really appreciate all the help/suggestions!!!!!!!!! |
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Mark A
medicine forum Guru Wannabe
Joined: 30 Apr 2005
Posts: 226
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| Posted: Sun Jun 25, 2006 11:30 pm Post subject:
Re: 1.6 High Index Help!!!!!
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"Toyman" <alienbratwurst@yahoo.ca> wrote in message
news:1151247337.038720.309310@u72g2000cwu.googlegroups.com...
| Quote: |
Thanks for all the input!.......I believe I have decided to go with the
Hoya Eyas 1.6 .....unfortunately here in the U.S. Nulux does not appear
to be available, However, I still feel that the Hoya AR is slightly
superior to the Sola Teflon....it also has a "lifetime of the
prescription" warranty vs 2 years on Teflon (my last prescription
lasted approx 8 years). So these reasons have given the edge to Hoya.
Thanks Again!
I really appreciate all the help/suggestions!!!!!!!!!
|
Just keep one thing in mind. The warranty for AR coating is for
manufacturing defects such as peeling, fading, etc. The warranty does not
cover scratches from normal wear and tear. Because of the delicate nature of
AR coatings, it is unlikely (but not impossible) that you can keep your
lenses scratch free for 8 years. But in any case, be very careful with your
lenses and learn how to clean them without scratching the relatively
delicate AR surface. |
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