Toric intraocular lenses

If corneal astigmatism (= astigmatism) of 1 dioptre or more is present before cataract surgery, it can be corrected using a specially manufactured intraocular lens. Therefore, in addition to the usual pre-operative measurements of the eyes with the IOLMaster, a corneal topography is performed. The power of the toric intraocular lens is then calculated and the lens is ordered from the manufacturer.

At the hospital, a modern operating microscope with an integrated tracking system is used, enabling precise alignment of the lens at the end of surgery. Prof. Findl has been involved in the development of this system (Callisto by Zeiss) since 2011, long before it became available on the market. Today, this system has become the gold standard for precise toric lens alignment and is used in leading cataract centres worldwide.

In recent years, Prof. Findl has conducted numerous clinical studies on toric intraocular lenses and published internationally. He regularly gives lectures and courses on toric intraocular lenses.

Erste Tecnis Toric in Europa implantiert

Präzise Ausrichtung der Kunstlinse – dieses System wurde durch Prof. Findl mitentwickelt

Selected publications by Prof. Findl on toric IOL

Varsits RM, Hirnschall N, Döller B, Findl O. Evaluation of an intraoperative toric intraocular lens alignment system using an image-guided system. J Cataract Refract Surg. 2019 Sep;45(9):1234-1238.
Hoffmann PC, Abraham M, Hirnschall N, Findl O. Prediction of residual astigmatism after cataract surgery using swept source fourier domain optical coherence tomography. Curr Eye Res. 2014 Dec;39(12):1178-86.
Hirnschall N, Hoffmann PC, Draschl P, Maedel S, Findl O. Evaluation of factors influencing the remaining astigmatism after toric intraocular lens implantation. J Refract Surg. 2014 Jun;30(6):394-400.
Popp N, Hirnschall N, Maedel S, Findl O. Evaluation of 4 corneal astigmatic marking methods. J Cataract Refract Surg. 2012 Dec;38(12):2094-9.

Zeilinger J, Schlatter A, Ruiss M, Bayer N, Kronschläger M, Findl O. Comparison of two digital alignment systems for toric intraocular lens implantation. BMJ Open Ophthalmol. 2024 Sep 16;9(1):e001875.
Ullrich M, Fisus AD, Palkovits S, Hienert J, Hirnschall N, Findl O. Rotational stability and capsular bag performance of a hydrophobic acrylic open-loop single-piece intraocular lens. Eur J Ophthalmol. 2024 Nov;34(6):1899-1908.
Hienert J, Ruiss M, Hirnschall N, Findl O. Assessing the astigmatism-reducing effect of toric intraocular lenses in eyes with low astigmatism: randomized masked bilateral comparison. J Cataract Refract Surg. 2023 Aug 1;49(8):826-831.
Zeilinger J, Hienert J, Ruiss M, Pilwachs C, Findl O. Rotational stability of a new toric intraocular lens with an advanced optical profile. J Cataract Refract Surg. 2023 Jun 1;49(6):584-588.

Prof. Findls Workflow bei torischen IOL – gute Planung und digitale Präzision bei OP

Plan

FORUM with EQ Workplace

Treat

LUMERA 700 + CALLISTO eye

Measure

IOLMaster 700 + Tomography

Frequently asked questions about toric intraocular lenses

When is a toric intraocular lens useful?

A toric intraocular lens is usually considered if corneal astigmatism of about 1 dioptre or more is present before surgery. Based on precise pre-operative examinations, Prof. Findl assesses whether the astigmatism is clinically relevant and whether a toric lens is beneficial in the individual case.

How is the power of a toric intraocular lens calculated?

In addition to standard biometric measurements, a detailed corneal topography is performed. Prof. Findl uses these measurement data to calculate the power and axis of the toric intraocular lens individually and to match it optimally to the anatomical conditions.

How is the toric lens precisely aligned during surgery?

Digital surgical systems with integrated tracking are used for precise alignment. Prof. Findl co-developed the internationally established system (Callisto®, Zeiss) as early as 2011 and therefore has particular expertise in digital intraoperative alignment.

What experience does Prof. Findl have with toric intraocular lenses?

Prof. Findl has conducted numerous clinical studies and published internationally. He regularly lectures and teaches courses on this topic and incorporates this scientific and clinical experience into individual lens planning for his patients.