-0.50/+1.00@75
What is cross cylinder form the prescription given above. Plz help
Am confused 😖
Type: Posts; User: Farhan Hassan; Keyword(s):
-0.50/+1.00@75
What is cross cylinder form the prescription given above. Plz help
Am confused 😖
Thanks Jason , i was exactly thinking the same...
Actual prescription of patient
R/E +0.75 / -2.00 180
L/E +0.75 / -1.75 170
Doctor prescribed For Access Lenses
-0.25 / -1.50 * 180 add +0.75
-0.25 / -1.75 * 170 add +0.75
Thank you every body
not good dear
i have done this but after HMC process the lenses get more darker and more yellow. :(
Hahaha
then what was the result ????
Hi every body
i think now its time think about the solution of old stock of cr-39 finnsih or semi-finnish lenses,
i have done so many expairmetns tinting, sun bleaching , but after hard...
i have been using free form lenses for last few years ago and the asked for the details about pa bvd wraping etcc even nrd,,,. . Recently i switched the lab and they dint ask for these perameters...
gokhan i am agree with you but this is also resposibility of the production company to ask about the all perameters they need.
But i do agree with you said above.
yeah true dear
may this is the reason. But i found bit satisfaction about gokhan commetns.
But gain thank you
hi GOKHAN
THANK U VERY MUCH .
YEAH YOUARE MAY BE THE USING DEFFULT SETTING BECAUSE THEY DI NOT ASK ME TO PROVIDE THE P.A BVD. NRD. FACE FROM ANGLE. THEY JUST ASKED ABOUT THE FIITNG HEIGHT .
...
Ok so you mean if the blank is based on a good material so the power variation will not be received but if the production dept using poor material in blank so thies type of error will be continue. Is...
Its total pal free form lens made on single vision
and the error is in the entire lenses not in only addition. I said power variation in distanse ....
I hope i got my point now and will give...
:tongue:
BUT HE SOLUTIONS ARE CONTINUE
LET THE NEW FRIENDS KNOW THE TECHNIQUES
Well robert its not any famous branded design like zeiss roden stock or essilor. Its easy lux design with 20to16mm fitting height from prp to nrd.
And unfortunatly i am facing the same power error...
Thank you very much for your contribution in the postive way :) jason h
hi robert
thank you for ur intrest first
well its about Cr 39 Free form lenses inside surfacing.
HI, SLAAM:smile:
HOW R U ALL
well now a days new technology PAL free form lenses back surfacing is very common i have tried many pair but but i am not satisfied with the power accuracy on my...
hithe best way i have tried so many time, just give them a sing dip of blue BPI tint. then leave them in open air for 1 hour . INSHALLAH you will find positive result.
GOD bless u too. THANK YOU
you may get that pair only in china :) with no issue
Assalam u alaikum
:unsure:
Dear all i know the basic thickness calculating formula but i am looking to find out the formula to find the PAL FF thickness formula. please help me out all masters...