Total Corneal Power TCP ™ New Confidence for Post-Refractive Patients “RTVue Total Corneal Power measurement has excellent repeatability, 0.17 D STDev on the post-lasik/PRK patient.” Baikoff, G. “CLINICAL APPLICATION OF OCT IMAGING IN THE ANTERIOR SEGMENT”, Centre de Chirurgie du Segment Antérieur, Clinique Monticelli, Marseille, France, For the Cornea Didactic Course ESCRS summer meeting 2011 “In my experience, the accuracy of the FD-OCT IOL power calculation method is higher than with any other tool available, making it an integral part of my preoperative diagnostic testing in cataract eyes that have previously undergone refractive laser surgery.” Erik L. Mertens, MD, FEBOphth Post Refractive Hyperope INPUT VARIABLES ACD - Anterior Chamber Depth AL - Axial Eye Length Net Corneal Power Anterior Corneal Power Posterior Corneal Power Central Corneal Thickness Biometer RTVue w/ TCP GET THE OCT-BASED IOL POWER CALCULATOR HERE: www.coollab.net/index.php?id=852 Note: RTVue TCP values are not interchangeable with K values for other formulas. See page 3 for a full-size report. !"# %&'' ()*+ ,-./00/".120 3456/4.78 900 4:;<.= 4/=/4>/?8 @/>/056/? A7 B2505-; C2-; 3<@8D @2>:? )12-; B@8 3<@8 +6?2./?E F5>8 GD %&'' C</ "20"102.54 := F(C :-./-?/? H54 62.:/-.= I:.< 64/>:51= JK8 ,. := 20=5 F(C :-./-?/? H54 /7/= I:.<51. 2-7 64/>:51= 4/H42".:>/ =14;/47 !>:4;:- /7/=#8 32.:/-. F2L/ !"#$ &"' ,(M B5?/0N ()*+), OPO !JQM# -./#0 9R"5-=.2-. 11234 >20:? 34:54 MST C76/ 567'8"7.9 >20:? C24;/. BJ*O !@# :+3;+ >20:? <8"= >?@ ABC0'8 ACD (mm) D >20:? AL (mm) ED >20:? <8"= -,FG' ?H, IC"J0KB8' L'8C."$ *3E3+ "8 MB0'8N !"#$ &' !"#$ &( )*+,#-+ Net Corneal Power (D) D*31D D*3EO ./0'1 Anterior Corneal Power (D) O+3DE O+31E 230(( Posterior Corneal Power (D) :O3E* :O31* 420(' Central Corneal Thickness (Um) OP* OPO 215033 >?@ Q"K'8 9BM9GMB0."$ 8'CGM0C IOL power (D) G%8VV (TCRA2=/? ,(M 65I/4 "20"102.54 H54 /7/= I:.< 64/>:51= 02=/4 >:=:5- "544/".:5- SAMPLE Defining the OCT Revolution
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Defining the OCT Revolution TCPPower Total...SD-OCT), and fluctuating angle of capture make addressing post refractive patients problematic. SOLUTION: RTVue with Total Corneal Power
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TotalCornealPowerTCP
™
New Confidence for Post-Refractive Patients
“RTVue Total Corneal Power measurement has excellent repeatability, 0.17 D STDev on the post-lasik/PRK patient.” Baikoff, G. “CLINICAL APPLICATION OF OCT IMAGING IN THE ANTERIOR SEGMENT”, Centre de Chirurgie du Segment Antérieur, Clinique Monticelli, Marseille, France, For the Cornea Didactic Course ESCRS summer meeting 2011
“In my experience, the accuracy of the FD-OCT IOL power calculation method is higher than with any other tool available, making it an integral part of my preoperative diagnostic testing in cataract eyes that have previously undergone refractive laser surgery.”Erik L. Mertens, MD, FEBOphth
Post Refractive Hyperope
INPUT VARIABLES
ACD - Anterior Chamber Depth
AL - Axial Eye Length
Net Corneal Power
Anterior Corneal Power
Posterior Corneal Power
Central Corneal Thickness
Biometer
RTVuew/ TCP
GET THE OCT-BASED IOLPOWER CALCULATOR HERE:www.coollab.net/index.php?id=852
Note: RTVue TCP values are not interchangeablewith K values for other formulas. See page 3 for afull-size report.
Utilization of TCP provides an important and novel piece to the puzzle in obtaining accurate biometry. This is particularly crucial in eyes that have had prior corneal procedures including refractive procedures such as LASIK. Incorporating this measurement into IOL selection has given me additional assurance of proper lens selection.
Jason Bacharach, MDDirector of Research at North Bay Eye AssociatesCalifornia Pacific Medical Center, Vice-Chair of Glaucoma Division, San Francisco / Petaluma Valley Hospital
PROBLEM: • Post refractive patients, especially those choosing premium IOL's, are increasing in number and are challenging as they have higher expectations. • K-values from keratometry, IOL Master and topography on post refractive patients are difficult due to the fact that these instruments only measure the front corneal surface and use the ratio of 82% to assume the back surface. In post refractive patients, this ratio may no longer be valid and could lead to post operative surprises. • Scheimpflug imaging systems directly capture front and back measurements however the slow capture speed, 15 micron resolution (versus 5 micron for SD-OCT), and fluctuating angle of capture make addressing post refractive patients problematic.
SOLUTION: RTVue with Total Corneal Power (TCP™) • Unique in the market - The only SD-OCT that provides corneal power to date • Directly measures the anterior and posterior surface of the cornea – no assumed ratio • 5 micron resolution • Excellent repeatability*
*Baikoff, G. “CLINICAL APPLICATION OF OCT IMAGING IN THE ANTERIOR SEGMENT,” Centre de Chirurgie du Segment Antérieur, Clinique Monticelli, Marseille, France, For the Cornea Didactic Course ESCRS summer meeting 2011
No Refractive SurgeryPost-Refractive
X /Y Ratio ≠ 82%
X
Y !"#$%&''$()*+$,-./00/".120$3456/4.78$900$4:;<.=$4/=/4>/?8
Cataract Surgery and the refractive patient Sample OCT-Based IOL Power Calculator
PROBLEM: • Post refractive patients, especially those choosing premium IOL's, are increasing in number and are challenging as they have higher expectations. • K-values from keratometry, IOL Master and topography on post refractive patients are difficult due to the fact that these instruments only measure the front corneal surface and use the ratio of 82% to assume the back surface. In post refractive patients, this ratio may no longer be valid and could lead to post operative surprises. • Scheimpflug imaging systems directly capture front and back measurements however the slow capture speed, 15 micron resolution (versus 5 micron for SD-OCT), and fluctuating angle of capture make addressing post refractive patients problematic.
SOLUTION: RTVue with Total Corneal Power (TCP™) • Unique in the market - The only SD-OCT that provides corneal power to date • Directly measures the anterior and posterior surface of the cornea – no assumed ratio • 5 micron resolution • Excellent repeatability*
*Baikoff, G. “CLINICAL APPLICATION OF OCT IMAGING IN THE ANTERIOR SEGMENT,” Centre de Chirurgie du Segment Antérieur, Clinique Monticelli, Marseille, France, For the Cornea Didactic Course ESCRS summer meeting 2011
No Refractive SurgeryPost-Refractive
X /Y Ratio ≠ 82%
X
Y !"#$%&''$()*+$,-./00/".120$3456/4.78$900$4:;<.=$4/=/4>/?8
Cataract Surgery and the refractive patient Sample OCT-Based IOL Power Calculator
TotalCornealPowerTCP
™
New Confidence for Post-Refractive Patients
“RTVue Total Corneal Power measurement has excellent repeatability, 0.17 D STDev on the post-lasik/PRK patient.” Baikoff, G. “CLINICAL APPLICATION OF OCT IMAGING IN THE ANTERIOR SEGMENT”, Centre de Chirurgie du Segment Antérieur, Clinique Monticelli, Marseille, France, For the Cornea Didactic Course ESCRS summer meeting 2011
“In my experience, the accuracy of the FD-OCT IOL power calculation method is higher than with any other tool available, making it an integral part of my preoperative diagnostic testing in cataract eyes that have previously undergone refractive laser surgery.”Erik L. Mertens, MD, FEBOphth
Post Refractive Hyperope
INPUT VARIABLES
ACD - Anterior Chamber Depth
AL - Axial Eye Length
Net Corneal Power
Anterior Corneal Power
Posterior Corneal Power
Central Corneal Thickness
Biometer
RTVuew/ TCP
GET THE OCT-BASED IOLPOWER CALCULATOR HERE:www.coollab.net/index.php?id=852
Note: RTVue TCP values are not interchangeablewith K values for other formulas. See page 3 for afull-size report.
Utilization of TCP provides an important and novel piece to the puzzle in obtaining accurate biometry. This is particularly crucial in eyes that have had prior corneal procedures including refractive procedures such as LASIK. Incorporating this measurement into IOL selection has given me additional assurance of proper lens selection.
Jason Bacharach, MDDirector of Research at North Bay Eye AssociatesCalifornia Pacific Medical Center, Vice-Chair of Glaucoma Division, San Francisco / Petaluma Valley Hospital