Aberrometry in the calculation of intraocular lens power and Toric intraocular lens alignment devices

Aberrometry plays a significant role in cataract surgery. It can help identify suitable candidates for premium intraocular lenses (IOLs) such as multifocal and toric IOLs, assess corneal aberrations post-refractive surgery, determine toric IOL alignment and select aspheric IOLs to improve the quality of vision. By measuring and analysing aberrations, aberrometry provides valuable information for optimising the visual outcomes of cataract surgery. Articles from Google Scholar and PubMed are reviewed, and data are collected by simplifying the knowledge acquired in understanding the usage of aberrometry. This review article provides an overview of aberrometry and emphasises its role in cataract surgery. The different devices used for wavefront analysis are discussed as well. It also provides an overview of the marking techniques and software-based digital solutions available for the precise alignment of toric IOLs, for the correction of astigmatism. Recent technological advances in the field of digital devices and mobile applications for marking the axis on the cornea are also discussed.