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"Optimizing IOL centration in cataract surgery: Narrative review of techniques, challenges, and outcomes"
Brindha Periasamy1, Mamta Singh2, Priyanka1
1Department of Ophthalmology, All India Institute of Medical Sciences, Bhopal, Madhya Pradesh, India.
European Journal of Ophthalmology
|February 5, 2026
Summary
Achieving accurate intraocular lens (IOL) centration is crucial for optimal vision after cataract surgery, particularly with advanced IOLs. This review explores techniques, challenges, and innovations for improving IOL alignment and patient satisfaction.
Area of Science:
- Ophthalmology
- Biomedical Engineering
Background:
- Intraocular lens (IOL) centration is critical for visual quality and refractive outcomes in cataract surgery.
- Premium IOLs (multifocal, EDOF, toric) demand precise centration for optimal performance.
- Achieving perfect IOL centration is challenging due to anatomical and intraoperative factors.
Purpose of the Study:
- To review current techniques for IOL centration in cataract surgery.
- To identify common challenges and clinical outcomes associated with IOL centration.
- To highlight recent innovations aimed at improving IOL centration accuracy.
Main Methods:
- Review of existing literature on IOL centration techniques.
- Analysis of preoperative and intraoperative variables affecting IOL placement.
- Discussion of technological advancements and surgical principles for centration.
Main Results:
- Preoperative factors (refractive status, axis marking, IOL calculation) and intraoperative factors (capsulorhexis, zonular integrity, IOL placement) significantly impact final visual outcomes.
- Various techniques exist to maintain IOL centration during surgery.
- Recent innovations aim to enhance centration accuracy and patient satisfaction.
Conclusions:
- Precise IOL centration is essential for successful cataract surgery outcomes, especially with premium IOLs.
- Addressing anatomical variations and optimizing surgical techniques are key to improving centration.
- Ongoing innovations promise to further enhance IOL alignment accuracy and patient satisfaction.
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