International Ophthalmology

, Volume 34, Issue 5, pp 1091–1096 | Cite as

Use of true net power in intraocular lens power calculations in eyes with prior myopic laser refractive surgery

  • Andreas Frings
  • Veronika Hold
  • Gernot Steinwender
  • Yosuf El-Shabrawi
  • Navid ArdjomandEmail author
Original Paper


Intraocular lens (IOL) power calculation following laser refractive surgery is still one of the most challenging aspects in cataract surgery. This study was initiated to investigate the application of true net power (TNP; Pentacam, software version 6.02r10, Oculus, Germany) in IOL power calculations in eyes with prior laser refractive surgery. Our data contribute to the notion that the TNP of the Pentacam is a reliable alternative to determine the IOL power in cases where the historical data are missing. Based on our data, we recommend implementing the TNP to obtain the true corneal power and thus, reliable IOL power calculations.


Intraocular lens (IOL) power calculation Cataract surgery True net power (TNP) Laser refractive surgery 


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Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  • Andreas Frings
    • 1
  • Veronika Hold
    • 2
  • Gernot Steinwender
    • 2
  • Yosuf El-Shabrawi
    • 2
  • Navid Ardjomand
    • 2
    Email author
  1. 1.Department of OphthalmologyUniversity Medical Center Hamburg-Eppendorf (UKE)HamburgGermany
  2. 2.Department of OphthalmologyMedical University GrazGrazAustria

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