Unlock TK with our experts
Kamran Riaz, Giacomo Savini, Tun Kuan Yeo, Mitchell Weikert and Jascha WendelsteinTK in post-LVC eyes
Hear how experts approach IOL calculations in post-LVC eyes and why measured posterior corneal power and TK have become part of their daily routine.- Measured posterior corneal data removes one of the biggest uncertainties in post-LVC IOL calculations.
- Leading surgeons6 rely on TK as a standard part of their post-LVC workflow to improve confidence and predictability.
- Barrett True-K with measured TK consistently delivers highly accurate outcomes in post-refractive patients.
- Simplifies planning by reducing dependence on historical data and multiple calculation methods.
Hear how experts are transforming post-LVC planning with TK.
TK in toric eyes
Explore how surgeons look at posterior corneal astigmatism and why they consider TK when planning toric IOLs.- Particularly valuable in against-the-rule and oblique astigmatism, posterior corneal contribution plays a critical role.
- Helps identify patients who may benefit from toric correction more accurately.
- Combined with Central Topography, TK supports more informed astigmatism management decisions.
Learn how experts use TK to refine toric decision-making.
TK in keratoconus eyes
Learn how surgeons navigate IOL calculations in keratoconus eyes and adapt their approach across different clinical situations.- Can be incorporated into both keratoconus-specific and standard formulas to calculate IOLs.
- Helps surgeons better manage cataract surgery in patients with irregular corneas.
- Combine posterior corneal measurement with Central Topography insights for a more complete clinical picture.
Explore how experts approach keratoconus IOL calculation with TK.
What is Total Keratometry?
Total Keratometry (TK®) combines unique telecentric keratometry measurement of the anterior corneal surface with measurement of the posterior corneal surface.
How it works
- Traditional Keratometry: Measures only the front surface of the cornea and uses a mathematical estimate (a constant refractive index) to guess the curvature and power of the back surface.1,2
- Total Keratometry: Uses advanced technology (like Swept-Source OCT) to measure the posterior cornea and corneal thickness, replacing estimations with exact measurements.3,4,5
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https://www.ajo.com/article/S0002-9394%2823%2900505-6/fulltext
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https://www.sciencedirect.com/science/article/pii/S2451993624000471
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Kamran Riaz, Giacomo Savini, Tun Kuan Yeo, Mitch Weikert and Jascha Wendelstein