gms | German Medical Science

34. Internationaler Kongress der Deutschen Ophthalmochirurgen (DOC)

23.06. - 25.06.2022, Nürnberg

IOLCon – the roadmap for reliable IOL calculation. New features of modern international internet data-base for updated and optimized IOL constants

Meeting Abstract

  • Sibylle Scholtz - Universität des Saarlandes, Institut für Experimentelle Ophthalmologie, Homburg/Saar
  • Oksana Vitovska - Bogomolets National Medical University, University Eye Clinic, Kyiv, Ukraine
  • Timo Eppig - Universität des Saarlandes, Institut für Experimentelle Ophthalmologie, Homburg/Saar
  • Michael Schwemm - Universität des Saarlandes, Institut für Experimentelle Ophthalmologie, Homburg/Saar
  • Achim Langenbucher - Universität des Saarlandes, Institut für Experimentelle Ophthalmologie, Homburg/Saar

34. Internationaler Kongress der Deutschen Ophthalmochirurgen. Nürnberg, 23.-25.06.2022. Düsseldorf: German Medical Science GMS Publishing House; 2022. DocWK 4.1

doi: 10.3205/22doc052, urn:nbn:de:0183-22doc0523

Published: June 3, 2022

© 2022 Scholtz et al.
This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 License. See license information at http://creativecommons.org/licenses/by/4.0/.


Outline

Text

Purpose: Today it is impossible to imagine calculating intraocular lens (IOL) power without them, because they can significantly improve the refractive result after cataract surgery: optimized IOL constants, ideally individually optimized for the specific surgeon. The Internet database IOLCon (https://www.iolcon.org/), founded in 2017, has meanwhile established itself as a reliable, worldwide available source for optimized IOL constants and specifications. Based on modern optimization strategies, IOLCon also offers individually optimized IOL constants free of charge for ophthalmic surgeons.

Methods: Close cooperation with Institute of Experimental Ophthalmology, University Homburg/Saar (Germany).

Results: The method used by IOLCon to optimize IOL constants is characterized as an “intelligent IOL constant optimization”, which uses e.g. statistical methods taking the measuring accuracy of the measuring instruments (e.g. the biometer) into account. Optimizations of the constants for the following published formulas can be found on IOLCon: Haigis, Hoffer-Q, Holladay 1, SRK/T – and now also for the new Castrop formula. The prerequisite is the use of current measurement techniques that precisely measure all distances of the eye. With this data in combination with modern formulae (such as the Castrop formula), even eyes which are outside the “norm” can be calculated more reliable compared to using classic formulae.

Conclusions: IOLCon fulfills all the requirements of a modern biometry database and established itself as an indispensable tool for cataract surgeons by today and will also meet future demands of ongoing developing ophthalmo-surgery. It can be accessed at https://iolcon.org.