Thin Lens

**kodorovski** · 10-20-2007, 05:38 AM

i have patient w/ RX
R.-12.00
L.-10.00

spec of frame ..
Rimless
A=53mm
B=25mm
D=17mm
i recommended her to use Essilor RX SV Nikon Aspheris 1.74 DHCC
i've been calculate for the len's thin at the edge and i got 5.7mm .
but she says it's not enough thin for her.... :drop:

any suggestion what lens should i use ?? :)

thx

sorry if my english not good :hammer:

**k12311997** · 10-20-2007, 06:06 AM

What is the patient's pd?

**Chris Ryser** · 10-20-2007, 06:07 AM

Originally Posted by kodorovski

any suggestion what lens should i use ?? :)

It' not the lens you have to worry about............the frame should have a smalle lens size and you get your edge thickness down in no time.

**kodorovski** · 10-20-2007, 06:26 AM

Originally Posted by k12311997

What is the patient's pd?

PD=71mm

Originally Posted by Chris Ryser

It' not the lens you have to worry about............the frame should have a smalle lens size and you get your edge thickness down in no time.

i can't give her another smaller size of frame because this frame is looking good on her face. this woman is fat n huge ...

:)

**Crazy-bout-Optics** · 10-20-2007, 08:21 AM

I have the Perfect Lens for her . . . . Its called a Contact lens. Tell her it is thin as can be, and no one will notice it on her ;-)

I've had patients just like her. If she wont switch frames tell her its 5+ mm thick lenses or contacts. You should calculate ET in poly and plastic so she can see just how thin of a lens she is getting. If she isn't satisfied, ask her to go into a Lenscrafters and have her ask how thin her lenses would be in their lenses. I think she will be running right back to you! ;-)

Matt

**optical24/7** · 10-20-2007, 09:35 AM

Originally Posted by kodorovski

i have patient w/ RX
R.-12.00
L.-10.00

spec of frame ..
Rimless
A=53mm
B=25mm
D=17mm
i recommended her to use Essilor RX SV Nikon Aspheris 1.74 DHCC
i've been calculate for the len's thin at the edge and i got 5.7mm .
but she says it's not enough thin for her.... :drop:

any suggestion what lens should i use ?? :)

thx

sorry if my english :hammer:not good

What calculator are you using? The Opticampus calculator gives a edge thickness in the above OD power with the frame/PD info from above as 7.3mm with a 1.5 c.t. Lantal 1.9 glass even comes out 6.2 edge with a 1.5 c.t. I find their calculator pretty accurate.

http://www.opticampus.com/tools/thickness.php

**DragonLensmanWV** · 10-20-2007, 09:36 AM

I believe it's called clear capsule exchange.
You can't get thinner than 1.74 index so tell her to get a cataract surgery and she'll have way thin lenses.

**Chris Ryser** · 10-20-2007, 09:53 AM

Originally Posted by kodorovski

PD=71mm

i can't give her another smaller size of frame because this frame is looking good on her face. this woman is fat n huge ...
:)

.................as it is rimless, leave the frame and just cut the lenses a bit smaller, that will help.

**MarcE** · 10-20-2007, 11:32 AM

We have all dealt w/ patients like this. Of course you want to help, but don't let her make her problems, your problems. You have heard many options:

smaller A size,
clear lens replacement
contact lenses
Remember that you can roll off about 25% off the total edge thickness, and if you get this as a stock lens the CT will be 1.1mm, not 1.5. Also, as Chris said, you could reduce the A size by about 1.25mm, and she will never notice, if you shape the frame right. After the roll, I calculate just about 4.0 - 4.2mm

Present her the options, and recommend the best for her. I like the lens replacement option.

I really like the Lenscrafters idea, but it won't work in Indonesia.

**Happylady** · 10-20-2007, 12:05 PM

Please don't roll the edge. It looks fine from the side and it is thinner, but it looks horrible when viewed straight on through the lenses.

At first I thought it reduce the size of the glassses, but if she has a 71 PD she probably needs this size.

You just need to tell her that with her Rx that is what she is going to get.

**k12311997** · 10-20-2007, 08:06 PM

to the people making ct assumptions based on ansi remember the poster is in indonesia, I've seen lenses from Asian markets with .8 ct.

**kodorovski** · 10-21-2007, 01:34 AM

Originally Posted by optical24/7

What calculator are you using? The Opticampus calculator gives a edge thickness in the above OD power with the frame/PD info from above as 7.3mm with a 1.5 c.t. Lantal 1.9 glass even comes out 6.2 edge with a 1.5 c.t. I find their calculator pretty accurate.

http://www.opticampus.com/tools/thickness.php

i'm using essilor NIKON thickness chart

**kodorovski** · 10-21-2007, 01:35 AM

Originally Posted by DragonLensmanWV

I believe it's called clear capsule exchange.
You can't get thinner than 1.74 index so tell her to get a cataract surgery and she'll have way thin lenses.

i suggest her laser surgery but she said : "someday i will, but i just need a new glasess right now.. ASAP " ....hohoho

**kodorovski** · 10-21-2007, 01:36 AM

Originally Posted by Chris Ryser

.................as it is rimless, leave the frame and just cut the lenses a bit smaller, that will help.

i'll think about it.... thanks :)

**kodorovski** · 10-21-2007, 01:45 AM

Originally Posted by Happylady

Please don't roll the edge. It looks fine from the side and it is thinner, but it looks horrible when viewed straight on through the lenses.

that's right

**wabmorgan** · 10-21-2007, 03:26 AM

Originally Posted by Happylady

Please don't roll the edge. It looks fine from the side and it is thinner, but it looks horrible when viewed straight on through the lenses.

At first I thought it reduce the size of the glassses, but if she has a 71 PD she probably needs this size.

You just need to tell her that with her Rx that is what she is going to get.

Smaller frame really won't help here. Frame PD=70 Patient PD=71. That's already the best that is going to get. Making the frame smaller might make the outer edge thinner... but when you have negative dec (or outset)... the lenses will start to get thicker in the nasal.

And DON"T ROLL. As HappyLady points out.... it looks thinner from the side.... but looks THICKER from the front view.

Also.... you need to let patient know there are "limits" as to what you can do.

Last peice of advice, if the patient is dead set on the idea that she doesn't want edges of lens to show.... you might try to get her to move to a zyl frame of the same size that will at least hide the thickness as much as possiable.

**HarryChiling** · 10-22-2007, 03:54 PM

Myodisc suprised no one thinks of this as an option anymore. I have plenty of patients that are extremely happy when they see the results. Matter of fact I am working on one know, I should have it surfaced and ready for AR on wednesday, I'll see if I can bring in the camera for a shot.

**ziggy** · 10-23-2007, 01:54 PM

Originally Posted by kodorovski

this woman is fat n huge ...

:)

I dont care what language you speak, this line is funny!! I almost fell off my chair. From the A and B measurements you gave, this frame is a rectangle, right? Have you tried a round frame?

**gemstone** · 10-23-2007, 02:07 PM

Originally Posted by wabmorgan

Smaller frame really won't help here. Frame PD=70 Patient PD=71. That's already the best that is going to get. Making the frame smaller might make the outer edge thinner... but when you have negative dec (or outset)... the lenses will start to get thicker in the nasal.

And DON"T ROLL. As HappyLady points out.... it looks thinner from the side.... but looks THICKER from the front view.

Also.... you need to let patient know there are "limits" as to what you can do.

Last peice of advice, if the patient is dead set on the idea that she doesn't want edges of lens to show.... you might try to get her to move to a zyl frame of the same size that will at least hide the thickness as much as possiable.

Smaller rounder frame with wider DBL.

**wabmorgan** · 10-23-2007, 10:25 PM

Good point... a wider DBL and smaller frame would reduce the increased nasal thickness caused by negative dec (or outset) and would result in a thinner temporal edge.

**braheem24** · 10-23-2007, 11:15 PM

I would check with Michael Walach http://www.optiboard.com/forums/member.php?u=2435

He showed me a design he was working with a -20.00 blank that looked like a -6.00 blank, I dont think he found a way around physics :D but his aspheric design was amazing.

Good luck, between your 2 accents (Czech, Indonesian) you guys should have fun :cheers:

EDIT : He has 4 types of myodiscs which they desing in-house http://www.questopticallab.com/order.htm

**MarcE** · 10-23-2007, 11:35 PM

Originally Posted by wabmorgan

Smaller frame really won't help here. Frame PD=70 Patient PD=71. That's already the best that is going to get. Making the frame smaller might make the outer edge thinner... but when you have negative dec (or outset)... the lenses will start to get thicker in the nasal.

And DON"T ROLL. As HappyLady points out.... it looks thinner from the side.... but looks THICKER from the front view.

I have a frame with dimensions 38-25. I bet that smaller frame would help. Opticampus.com calculates 3.0mm (for a stock 1.74) before any roll at all.

I understand your opinion on the roll, but that is your opinion. The patient wants a way thin lens. Her opinion may be different.