Dr Titone at East Carolina Center for Sight has been selected to be one of the first in the USA to receive the new Total Keratometry upgrade for the IOLMaster 700. This will allow us to select the best possible Lens power for our cataract surgery patients.
The IOLMaster®700 from ZEISS with SWEPT Source OCT technology now allows us to directly measure the posterior corneal surface. It combines unique telecentric keratometry measurement of the anterior corneal surface with measurement of the posterior corneal surface in order to calculate Total Keratometry (TK®).
There are two exclusive new formulas: Barrett TK Universal II and Barrett TK Toric
The current Barrett Toric Calculator uses a unique eye model to predict the posterior corneal surface. Using Total Keratometry with the Barrett Toric Calculator would thus lead to overcompensation of posterior corneal astigmatism.
Because of this, Graham Barrett has developed two new IOL power calculation formulas: the Barrett TK Universal II for non-toric IOLs, and the Barrett TK Toric for toric IOLs. Both new formulas use posterior corneal surface measurements instead of the eye model used by the Barrett Toric Calculator
We Can use existing IOL calculation formulas – no need for a second device, third-party software or an online calculator
This decreases errors in manual data entry and streamlines workflow.