Hi folks,
just checking to see what you are charging to mount a Fresnel prism to your patient's glasses with the Fresnel included in the price ? Here at work I do $30.00 plus tax.
As you most likely know , there isnt a lot of money to be made here but it is a service for our patients. I generally do about 10 jobs a week on average.
Thanks!!
John
A.B.O.C. ,
Callahan Eye Hospital Optical Shoppe at UAB
4 time Graduate of the Jethro Bodine Double-Naught Spy Skool of Teknawlogie.
Have some fun today, go out and fly a remote control airplane !
John,
I do not do many, but I usually charge between $30-$45 depending on situation, frame style, work involved, lab charges, etc.
$69.00. And none look better than mine!
B
Is he a little self confident ? Do you think he would show us pictures and technique to back up these claims ? A video would be nice !
Originally Posted by idispense
That would be outstanding. Seriously. There should be a youtube channel for stuff like that!
"Strictly speaking, there are no enlightened beings; only enlightened activity." -Shunryu Suzuki
He sounds serious! Maybe he is just trying to over-compensate for something else()? LOL
Just kidding..., ...just kidding Barry.
A.B.O.C. ,
Callahan Eye Hospital Optical Shoppe at UAB
4 time Graduate of the Jethro Bodine Double-Naught Spy Skool of Teknawlogie.
Have some fun today, go out and fly a remote control airplane !
if you drill little holes in the lense and connect a vaccum cleaner on one side, then its no problem to suck that prism into place with no air bubbles, but I need the video showing how to fill in those air holes, other than that I have the technique down pat.
Lol!
A.B.O.C. ,
Callahan Eye Hospital Optical Shoppe at UAB
4 time Graduate of the Jethro Bodine Double-Naught Spy Skool of Teknawlogie.
Have some fun today, go out and fly a remote control airplane !
The next one I do, I will film it and post a video.
Barry
Barry, make sure it's on a -20. Rx!
$28 each. And Barry just give a quick overview of "the technique?" I do most of the Fresnel prism in our office just as sort of a change of pace and I'm always interested to hear how different opticians tend to approach it. Probably the strangest I've seen is a prism job where rather than cutting it to match the shape of the lens they used some sort of round "cookie cutter" to make a fresnel circle in the middle of each lens.
"Wise men don't need advice. Fools won't take it." - Benjamin Franklin.
Are some of you guys talking price over cost? Some of you guy's pricing is material cost alone. And Barry, your price is low!
We charge $49.
Ophthalmic Optician, Society to Advance Opticianry
Completely Clean concave side of lens. Test apply fresnel to back dry, and confirm prism direction is correct. RoughTrim with with cuticle scissors. Now clean back of fresnel with lens cleaner and microfiber. Re-apply pre-trimmed fresnel and align. Trim closer to lens edge with cuticle scissor again. Now place lens under running water, and peel back one side half way, then turn and repeat on other side. Now recenter and, using a brand new single edge razor blade, trim to lens edge, keeping blade angle to match bevel angle. Hold fresnel tight in middle with thumb. Push out bubbles. Leave dry overnight. Insert. Voila!
B
I would like to add that you should really keep the edge of the fresnel about .5 to 1 mm away from the bevel/safety bevel, OTW, it is more likely to start peeling under normal use. By going right up to the bevel, you may think it looks better, but in a short time, the user will cause it to start to peel and then it looks worse.
Another tip; Get a 360 degree protractor. Use a waterproof lens marker and mark the front of your lens 90 degrees opposite of your prism direction. When you overlay your fresnel on the back use your marks to align the prism "lines" on the fresnel.
i.e. Prism is compounded for OD up and in @45 degrees. Mark your lens at 135 and at 315. Align the fresnel lines to these marks for exact placement.
disagree! If u follow my tip on angling the razor blade, there is no interference with the frame. If fact, I maintain there is less chance of edge lift this way.
b
good tip!
I agree, I do it the same way. It provides a "chamfer" of sorts around the prism and I feel that it is less likely to catch and peel.
We charge $40. I think that's low for all the work involved. When you factor in shipping etc, we're not much over cost. And eyeguy21...I've seen those cookie cutter ones you were talking about. Goes right through me. Worst I've ever seen. My jaw was on the floor. On top of that... it was done on the front surface of the lens. Ugh.
That's pretty much it. We charge enough to cover our costs.
"Wise men don't need advice. Fools won't take it." - Benjamin Franklin.
.
Good stuff. Instead of the cuticle scissors I just use an exacto with a new blade every time and I cut it on top of an old phone book at an angle. Also I find that if I fill the sink with warm to hot water and completely submerge both lens and prism to apply it I rarely get any bubbles so there's nothing to smooth out. My cleaning ritual is about the same as yours except for a pair of exam gloves that keeps my fat fingerprints off the lenses.
"Wise men don't need advice. Fools won't take it." - Benjamin Franklin.
except for mine! LOL
just having fun.
Randle
I also place to edge of lens with a bevel on the fresnel. rather than using a razor for the bevel, i always used a hand stone with slight pressure so as not to alter the lens. this is just personal preference, but i do like place it to the edge of the lens.
also, i attach the prism to the lens by filling a sink or bowl with enough water to completely cover the lens and then work out all the air bubbles.
Randle
Our pricing seems to be at the mid point of others. I also use Barry's technique on trimming, but use a contact wetting solution after cleaning with liquid detergent. The wetting solution is slick enough to allow the lens to be positioned.
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