This is a very complex concept. Typically, it is more notable if you have a multifocal lens because the sweet spot is tight. Look up angle kappa. Here is a copy and paste of a abstract talking about angle kappa. Angle kappa is the difference between the pupillary and visual axis. This measurement is of paramount consideration in refractive surgery, as proper centration is required for optimal results. Angle kappa may contribute to MFIOL decentration and its resultant photic phenomena. Adjusting placement of MFIOLs for angle kappa is not supported by the literature but is likely to help reduce glare and haloes. Centering LASIK in angle kappa patients over the corneal light reflex is safe, efficacious, and recommended. Centering in-between the corneal reflex and the entrance pupil is also safe and efficacious. The literature regarding PRK in patients with an angle kappa is sparse but centering on the corneal reflex is assumed to be similar to centering LASIK on the corneal reflex. Thus, centration of MFIOLs, LASIK, and PRK should be focused on the corneal reflex for patients with a large angle kappa. More research is needed to guide surgeons’ approach to angle kappa.
doc, it's been 1 year since the cararact operation, so the left eye case, I still feel different at night, especially when the light hits my left eye, I see a circle, and the lens that was put on me now reflects, and I have a cataract on the right. I'm afraid that the same may be the result of the right, what can I do to get rid of the circle I see, thank you
@@DrJeffreyTran i went to 7 dr. But they say the operation was good but until now im not happy for my left eye so scared at all bec my right eye also have cataract i feel so foggy i came from Manila hope my eyes will be back it is very important to me cause i have stroke last oct 2021
Underrated video. Great info and to the point.
Thanks! I really put a lot of effort into these videos
Great info & education about cataract surgery. Thanks so much for the video, Dr. Tran 💐
Thank you so much for watching!
Doc, thanks for info here. Can you pls share your thoughts on lens decentration and its implications, possible treatment.
This is a very complex concept. Typically, it is more notable if you have a multifocal lens because the sweet spot is tight. Look up angle kappa.
Here is a copy and paste of a abstract talking about angle kappa.
Angle kappa is the difference between the pupillary and visual axis. This measurement is of paramount consideration in refractive surgery, as proper centration is required for optimal results. Angle kappa may contribute to MFIOL decentration and its resultant photic phenomena. Adjusting placement of MFIOLs for angle kappa is not supported by the literature but is likely to help reduce glare and haloes. Centering LASIK in angle kappa patients over the corneal light reflex is safe, efficacious, and recommended. Centering in-between the corneal reflex and the entrance pupil is also safe and efficacious. The literature regarding PRK in patients with an angle kappa is sparse but centering on the corneal reflex is assumed to be similar to centering LASIK on the corneal reflex. Thus, centration of MFIOLs, LASIK, and PRK should be focused on the corneal reflex for patients with a large angle kappa. More research is needed to guide surgeons’ approach to angle kappa.
doc, it's been 1 year since the cararact operation, so the left eye case, I still feel different at night, especially when the light hits my left eye, I see a circle, and the lens that was put on me now reflects, and I have a cataract on the right. I'm afraid that the same may be the result of the right, what can I do to get rid of the circle I see, thank you
Thank you for watching.
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What type of lens did you get?
@@DrJeffreyTran monofocal lens yellow lens the dr said maid in switzerland
@@jeffseguin4872 did the doctor who examined you report any surgical complication?
This was done in the US right?
@@DrJeffreyTran i went to 7 dr. But they say the operation was good but until now im not happy for my left eye so scared at all bec my right eye also have cataract i feel so foggy i came from Manila hope my eyes will be back it is very important to me cause i have stroke last oct 2021
My father has done cataract surgery 5 dys ago now today suddenly he lost his vision.. please do suggest what should we do to get his vision back
As only someone seeing this comment, you need to call your doctor asap
I Had CATARACT SURGERY but had minus 30 prescription so left eye is crystal but right not as good ,,Any suggestions please thank you upfront
You were a -30D before surgery?
@@DrJeffreyTran YES SIR