Zoom Logo

Spring meeting ROOM2 - Shared screen with speaker view
Alireza Eslampoor
08:11
Maybe you should check your junk
Gold-is
08:16
hello. please send the link here
Alireza Peyman
08:56
IOLSOLVER not displayed now, you may need to change your IP using a vpn
Hesam Hashemian
08:58
Topic: Spring meeting ROOM2Time: Jun 17, 2021 09:00 PM TehranJoin Zoom Meetinghttps://zoom.us/j/99359412491?pwd=dThzbTVkZ0VoenVwQUJDZzhxMzBKQT09Meeting ID: 993 5941 2491Passcode: spring
Gold-is
10:02
thank you
Hesam Hashemian
12:16
OLCI measures segmented AL
Hesam Hashemian
12:25
PCI does not
Dr.Niknam
12:49
miserable communication !
Hesam Hashemian
12:57
SSOCT measures the best
Hesam Hashemian
21:40
If all panelists could say which IOL formula they use for outlayer measurements as Dr Peyman mentioned.
Alireza Peyman
23:35
It differs for regular and VIP cases
Alireza Eslampoor
24:15
Kane and Barret Universal 2, olsen and OKULIX by OA2000 are my favorite ones.
Alireza Peyman
25:05
For RLE, I add online calculators like Barret and HofferQST + HillRBF
Hesam Hashemian
25:47
in KC cases I did not have good results with okulix OA2000
Alireza Peyman
26:17
For regular cases even if outlier I use Olsen+Haigis+Okulix
Dr.Niknam
27:14
I have the best experience with kane
Alireza Peyman
27:33
Okulix is not specially designed for KC, and there might be error in defining the radii, you might add about 30-50 % of the keratometric astig to the calculated power for better result
Hesam Hashemian
28:39
Exactly or use Kane as Sasan mentioned
Alireza Peyman
28:42
The Okulix TORIC calculator is excellent in mild KCN
Alireza Peyman
29:55
the model fit for cornea is somewhat more efficient in Okulix toric, using the eccentricity of the cornea
Hesam Hashemian
30:08
In OA2000?
Alireza Peyman
30:16
Yes
Alireza Peyman
30:29
And TMS-5 or Casia-2
Alireza Peyman
31:06
The printout of the TMS-5 and Casia-2 okulix is not a good-looking one, I still prefer OA2000
Hesam Hashemian
31:23
In Okulix for TMS or CASIA posterior corneal power is included but not in OA2000
Alireza Peyman
31:36
Exactly
Hesam Hashemian
31:50
So TMS and CASIA may be preferable in KC and post ref?
Alireza Peyman
33:44
The OA is specially designed for this, theoretically the TMS5 should have better result, but painful to calculate in the software
Alireza Peyman
36:23
They should improve the display quality for Casia and TMS5 workstations.
Alireza Peyman
37:06
The good point for TMS 5 is that it is pretty easy to update the IOL database in the windows software.
Alireza Peyman
38:07
I need VPN to enter the https://iolsolver.com/ you were right dear Hesam
Hesam Hashemian
38:51
Thank you Alireza for usefull comments
Hesam Hashemian
40:22
Future of IOL calculation in KC and post ref is exact K measurements. TK IOL master or TCRP Pentacam AXL
Hesam Hashemian
40:43
Esp in toric
Alireza Peyman
42:27
In theory the AI adjustment on Ray-tracing + accurate measurements will have the best result, still no formula with all this characterstics
Alireza Peyman
45:14
Any slide to display?
Mohammad Ghoreishi
45:28
No slides
USER
45:30
slid nist
Alireza Eslampoor
46:46
Good points.The most catastrophic calculation is Toric calculation in post LVC ectasia cases.
Hesam Hashemian
47:44
exactly Alireza
Alireza Eslampoor
52:12
An important issue regarding IOL calculation in KCN cases is the astigmatic refracive effect of coma that could not cover with TCP.
Alireza Peyman
52:54
I've written a letter on Haigis-L theoretical error
Alireza Peyman
54:29
https://pubmed.ncbi.nlm.nih.gov/19683176/
Hesam Hashemian
57:14
Great Job
Alireza Peyman
57:27
https://journals.lww.com/jcrs/Fulltext/2009/09000/Intraocular_lens_power_after_refractive_surgery_.37.aspx
Hesam Hashemian
01:00:58
Dr Eslampour you mentioned in KC cases astigmatic refracive effect of coma not cover with TCP. I agree . but we have no other formula to include coma or refractive astigmatism in IOL power or IOL toricity.
Hesam Hashemian
01:02:48
The only way is to compare astigmatism of cornea and refraction and if the difference is not high the error may be acceptable.
Alireza Peyman
01:03:22
It is not possible to calculate the internal astigmatism in the presence of cataract
Alireza Eslampoor
01:03:40
Exactly. Reinstein has a new theory of considering MRC(Manifest refractive cylinder) versus TCP in these cases.
Alireza Peyman
01:04:28
Even a tiny PSC will make deviations of measurement significantly
Hesam Hashemian
01:05:40
if we can do refraction . it helps. otherwise just compare central and peripheral cylinder. In advance KC toric IOL results is prone to error
Alireza Eslampoor
01:06:02
Although we the lenticular astigmatism component would be double treated.
Hesam Hashemian
01:06:20
exactly
Alireza Peyman
01:06:53
Don't forget Fourier analysis to find the regular component of the astigmatism
Hesam Hashemian
01:07:27
do anyone have master 700 upgrade for TK?
Alireza Eslampoor
01:07:47
He has showed that the amount of double treated lenticular astimatism is less than residual coma and its indused astigmatism.
Alireza Peyman
01:07:57
Not available in our hospital
Alireza Peyman
01:08:14
the TK
Hesam Hashemian
01:16:34
Holladay 2 is not good at all
Roshani
01:18:04
ممنون استاد قریشی
Alireza Peyman
01:18:30
Plano!
Hesam Hashemian
01:19:45
can we put Galilei TK in IOL calc formula to calculate spherical power of IOL?
Alireza Eslampoor
01:20:30
I agree with you Dear Alireza.
Alireza Peyman
01:29:39
Least error after RK with Olsen, and Haigis, they use direct measurement of ACD for ELP estimation
Alireza Peyman
01:30:10
But I legally use the ASCRS calculator
Hesam Hashemian
01:35:57
OLSEN is available in pentacam AXL
Alireza Peyman
01:36:45
Thank all
Hesam Hashemian
01:37:05
بسیار ممنون.بسیار آموزنده بوذ