What Is Decentration?

[@ferencjuhasz5583]

Laramy-K is one of the best optician, and a really good teacher.

[@zn6761]

This is a very simple explanation, Thanks John!

[@dellaoptique8255]

Thank you for your excellent videos ! You make difficult concepts easy to understand .

[@izzatlaiwalla96]

V informative!! Clears many confusions

[@autumndavis7605]

Thank you very helpful as a reminder for layout work for the finishing lab!! Thanks again.

[@adityapratama4095]

Thanks to you Mr. Seegers and laramy K. this video was helpfull.

[@SS-mj7zq]

Of course understood it.. Thanks

[@tru2nay142]

THANK YOU SO MUCH!! I have a test coming up and I didn't get what the IN & OUT meant but your visual really cemented the info in my head

[@nadz.s9212]

thank you.now im more clear after the explaination.thumb up

[@NoneMechanic101]

Very well done

[@judalexa]

Excellent explanation! Thanks

[@special_touch1734]

Thank you for teaching

[@62ivleenayogi72]

Very helpful. Thanks a lot!!

[@user-ul5pe5dz2w]

Great

[@aeen64]

u r The best

[@sakinamasud5392]

Nice and clear

[@gazaltabrizipour6316]

LOVE THE ENDING! lol :)

[@LaramyKOptical]

Thanks, Andy! ;)

[@widiastutiekowulandari8511]

Nice , many thanks

[@gira110]

so great

[@raheembarakat9936]

Thank you sir

[@RaashadGamerDude]

Can you do a video or the glasses adjusted please love your videos🙏🏽👂🏽

[@LaramyKOptical]

Chris, I do cover standard alignment in a video that is on the website. Videos on the adjustments made for individual wear are on the list but no idea on a release date. My biggest problem is lack of a "dispensing" area to shoot them. Anyone have a shop within 60 or so miles of Anderson SC they would like featured in a video series? John

[@besoftcool]

Sir please tell me how to mark angles & near sight or bifocal lenses

[@samdcuza7343]

Nice video sir Make video on jcc

[@sunshine.a3452]

Thank youuuu

[@machak7763]

With larger frames , optical centre's should be decentred vertically as well as horizontally because the optical axis of the lens should correspond to the centre of rotation of the eye what cosmetic problem does this cause

[@LaramyKOptical]

The eye is far less sensitive to the vertical placement of the OC than the horizontal. In reality as long as they are both on the same plane it rarely matters. An OC bump is a fine idea but keep it to a minimum (around 5mm). If powers are high enough that it matters (+/-7 and higher) then you should just pick a better frame. The cosmetics can get ugly with thickness becoming an issue both temporally and in the vertical up at the eyebrow or cheek.

[@indrajitpaul2931]

Sir, can you tell me how can i solve power variation in a lens?

[@juanmejias5618]

@Laramy-K Optical Thanks so much for the video! Can the decentration be negative in the MBS formula?

[@LaramyKOptical]

Juan, I'd think that movement away from the center is movement away from the center. If you happened to have 3 out instead of 3 in I'd just use 3. John

[@juanmejias5618]

Laramy-K Optical Noted. Thanks for the feedback!

[@amiriftikhar3221]

Hey john, I was seeking your advise on the centre difference in y-axis, as this video shows decentration on x-axis. What if there is centration issue along both x and y axis?

[@LaramyKOptical]

We call decentration movement along the 0-180 to align the lens OC with the pupil horizontally. We call movement along the 90 or vertical an OC placement or OC height. Same movement as you would use for blocking a progressive on the fitting cross. See: kzbin.info/www/bejne/q6Oxf3-oo7x_Z9E

[@amiriftikhar3221]

@@LaramyKOptical thankyou, It was very helpful.

[@rameshmaurya4883]

Can you w explain about the Total Decentration . Thank you

[@gazaltabrizipour6316]

He did...

[@thelordknowsaboutit]

How did you get 66FPD

[@LaramyKOptical]

kzbin.info/www/bejne/hGi7oqelgtGfbqM

[@williambaldwin9346]

Ummmm I think I am in the wrong Decentration video, this is not Piaget's psychological theory of development.

[@LaramyKOptical]

That's next door in Room 564. Thanks for stopping by though...