This interactive tool computes and illustrates the optimal rotation angle of a toric IOL to minimise residual astigmatism after surgery. It relies on a full vectorial analysis (J0/J45) and converts the toric power between the IOL plane and the corneal plane from the effective lens position (ELP). Designed as a decision-support and teaching aid, it is intended for cataract surgeons.
Key features
- Optimisation of the angle θ to minimise residual cylinder and target the intended spherical equivalent
- IOL-to-cornea toric conversion via the effective lens position (ELP)
- Model based on the Gatinel Q-ratio and vergence
- Frontal and surgical views of the IOL positioning
- Associated optimisation curves and profiles
- Vectorial representation of astigmatism (J0/J45 components)