Please help with lens choice.

[mikedds]

Hi,
I know that his might be a sensitive subject on Optiboard, but I am actually considering getting lenses for my old prescription online.
It's a semi-rimless frame. I was considering either getting the Seiko® 1.67 Super High-Index Lenses from 39dollarglasses.com and adding the ARC to the order or getting
Crizal Hi Index 1.67 Crizal Alize Aspheric ARC
from glassesonweb.com

Seiko ~$114
Crizal ~$129

1.Which one is a better lens? (lighter, thinner, and with better coatings)
2. Also, is the Seiko lens aspheric? It doesn't say anything on it's website. My prescription is -4.25 in both eyes.

I am leaning toward's getting the Crizal lens.

3. Should I consider just getting the 1.67 Generic Hi Index 1.67 HMC Aspheric
lens for $109? 4. Will it be thicker than the Seiko or Crizal lens? It says that it comes with the Crizal coating as well.

Sorry for the multitude of questions?
I appreciate your input.

Thank you,
Michael

[QDO1]

Why do you think you want aspheric? and what height do you want to set it?

[For-Life]

It is a sensitive subject for us, not because we are losing business, because there is a good chance that none of us ever had your business before. It is a sensitive subject because online optical stores are unethical, immoral, and there is a lot more to a pair of glasses than the prescription, believe it or not.



At this point I have to tell you that the responses to this thread will not seem positive, however, they will be necessary and they will be true. So be prepared for it.


My suggestion is buy from a licence optician you can see, because if you do not you might not be able to see.



Edit - Let me also add that if selling glasses online was a fair, ethical, and accurate way to sell glasses I would have been doing it a long time ago. So now you must ask yourself why I would not enter that realm.

[Lewy]

Michael,

You say you are going to buy lenses online, who is going to cut them and assemble them for you? Are you aware what base curves you are wearing at present, what the new ones will be? What Pd do you want to set them at, and as King put it, what height are the centres going to be fitted?

There's more to a pair of glasses then meets the eye! Go visit your local Optician....

Lewy

[Chris Ryser]

1.Which one is a better lens? (lighter, thinner, and with better coatings)

I would say that none of them will be or might be a good lens because you purchase them unseen, no proper fit and no professional taking care of it.

Would you go and have your teeth repaired by someone in a house or apartment without the proper credentials to show that they are qualified?

[QDO1]

I am being a bit cutting but do you realise I take the folowing measurements for a dispensing of a single vision RX

• BVD
• RDPD
• LDPD
• RH
• LH
• DIHEDRAL
• FA

I would measure the old base curve, and my lens choice would reflect the previous lens worn, in terms of ASPHERICITY, BASE CURVE and REFRACTIVE INDEX

To that end, I might also specify the BASE CURVE


I would possibly compensate the RX for the following:

• BVD
• DIHEDRAL
• BASE CURVE

I would compensate the OC height for whatever the FA was

I am not trying to blind you with science, but genuinly thats what us optical professionals do (or consider) on a day to day basis

Buy online - roll a dice
Buy from a true professional, and enjoy the potential in your visual system

[Jason Carruthers]

Hi Mike,

I'm thinking about starting an online business that sells dental fillings, crowns, bridges and whitening kits. Can you give me any advice on where to buy the cheapest materials?

thanks

[QDO1]

Hi Mike,

I'm thinking about starting an online business that sells dental fillings, crowns, bridges and whitening kits. Can you give me any advice on where to buy the cheapest materials?

thanks

I would write the website code! whats the cut?

[Happylady]

What is your prescription?

[Lewy]

I am being a bit cutting but do you realise I take the folowing measurements for a dispensing of a single vision RX

• BVD
• RDPD
• LDPD
• RH
• LH
• DIHEDRAL
• FA

I would measure the old base curve, and my lens choice would reflect the previous lens worn, in terms of ASPHERICITY, BASE CURVE and REFRACTIVE INDEX

To that end, I might also specify the BASE CURVE


I would possibly compensate the RX for the following:

• BVD
• DIHEDRAL
• BASE CURVE

I would compensate the OC height for whatever the FA was

I am not trying to blind you with science, but genuinly thats what us optical professionals do (or consider) on a day to day basis

Buy online - roll a dice
Buy from a true professional, and enjoy the potential in your visual system

King,

Do you compensate on all your single vision Rx's or just high plus/aspherics? If so do you manually recalculate all the data or do you use software to do the job? If software, which program do you use? How much time do you spend with a client on average, I allow 30 mins usually and sometimes struggle and run over.

Just interested in how different DO's work and how I can improve the way I work and give a better service to my clients. :D

Thanks,

Lewy

[QDO1]

King,

Do you compensate on all your single vision Rx's or just high plus/aspherics? If so do you manually recalculate all the data or do you use software to do the job? If software, which program do you use? How much time do you spend with a client on average, I allow 30 mins usually and sometimes struggle and run over.

Just interested in how different DO's work and how I can improve the way I work and give a better service to my clients. :D

Thanks,

Lewy

I used to use a Excel sheet, But that died with a hard drive. I now use the calculators available on this forum. in the download section. I adjust the height for frontal angle using a simple formula in my head. Taking all the measurements is a good way to go - it is a pain at first, but now they just seem so easy. That has the spin off that when I have a ILT order (for example) I dont look awkward infront of the patient, taking measurements that for most dispensers are only done once in a blue moon. Basically I dispense in 1/2 hour, but catch up with the ordering in a gap later. I sometimes run behind, but my patients are all generally ok about it. The fitting the frame bit is essential to speeding things up, as many of the measurements come off the fitted frame direct, and might not get recorded "in the dispensing" but just before ordering. To that end I prefer to dispense from stock. I use experience to decide what gets adjusted. However if I am unsure I run the maths and see. What I forund to be an eyeopener is how many minor RX's ought to be adjusted, and are just left. It is the combination of fitting alterations that seem to add up to a significant change

I have a routine (I sometimes deviate):

Pre dispense

• Pre assess the old records - usually 1st thing in the morning
• Swot up on any odd lenses I know will be comming my way through the day

Dispense

• Handover from Optom
• Find out information - occupation, sports, old spex issues etc.
• Assess needs
• Discuss lens options
• Select Frame (s) - Most of the time I choose the initial frame selection for the client by bringing them to the desk
• Fit frame
• Take all the measurements and record them (I use a combination of PD rule, pupilometer and marker pens etc. and base curve clock)
• Price up
• Confirm with patient
• Ask if anything else that I can do
• Show patient to practice door with handshake

Post Dispense

• Assess any adjustments - I will consider the old spex measurements too
• Record adjustmetnts, and state why job was adjusted on record
• Order Job - usually to 0.12 if job was going to a sympathetic lab

On arrival of job

• Check job for all parameters, and physical mounting and damage etc.
• Loctite screws
• Oil joints
• Set up (to measurements taken above)

On fitting Job

• Check fit + tweak
• Check vision
• Give adaption exercises and advice
• Confirm patient is 100% happy
• Ask if anything else that I can do
• Show patient to practice door with handshake
  

I just cant see how ordering a online job can be correcty measured up