
CHALLENGES IN PREMIUM CATARACT SURGERY
Plan
Correct IOL selection and efficient surgery planning
Clinical solutions for toric IOL calculation
Leading ophthalmologists share their experience

ZEISS EQ Workplace
Software designed to save time during pre-operative processes, protect against never-events, and access data from anywhere.
- ZEISS IOLMaster data is transferred automatically to the ZEISS EQ Workplace, to populate the relevant fields for toric IOL calculation and selection
- Integrated toric formulas: Barrett TK Toric, Barrett Toric, Z CALC 2.0 and Haigis T
- Pre-plan your surgery remotely: Connect to your ZEISS CALLISTO eye and prepare your surgical assistance functions.
- Direct online ordering of IOLs in selected countries

Z CALC
The Z CALC online calculator is a free browser-based web application that supports users in selecting ZEISS toric IOLs.
- Specifically for ZEISS IOLs optimized proprietary calculation algorithm predicting the post-operative residual refraction
- Takes posterior corneal astigmatism into account – either by using ZEISS IOLMaster TK values or with the Z CALC nomogram
- Allows for adjustment of estimated lens position (ELP)
- Enables quick and easy ZEISS IOL ordering (in selected countries)
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Hirnschall, N., Findl, O., Bayer, N., Leisser, C., Norrby, S., Zimper, E., & Hoffmann, P. (2020). Sources of Error in Toric Intraocular Lens Power Calculation. J Refract Surg, 36(10), 646-652. doi: 10.3928/1081597X-20200729-03
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Brunner, B.S.; Luft, N.; Priglinger, S.G.; Shajari, M.; Mayer, W.J.; Kassumeh, S. (2022). Saving of Time Using a Software-Based versus a Manual Workflow for Toric Intraocular Lens Calculation and Implantation. J. Clin. Med,11, 2907. https://doi.org/10.3390/jcm11102907