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Related Experiment Video

Updated: Nov 29, 2025

Author Spotlight: Enhancing Visual Outcomes in Cataract Surgery: A Novel Technique to Prevent Posterior Capsular Opacification Through IOL Rotation
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Phakic intraocular lens: Getting the right size.

Kalyaani Deshpande1, Rushad Shroff2, Partha Biswas3

  • 1Department of Cataract and Refractive Surgery, Mumbai Eye, Brain and Spine Clinic, Mumbai, Maharashtra, India.

Indian Journal of Ophthalmology
|November 24, 2020
PubMed
Summary

Accurate sizing of phakic intraocular lenses (IOL) is crucial for spectacle independence. This guide details methods for precise PIOL sizing, addressing challenges for surgeons new to implantation.

Keywords:
Algorithmic approachPhakic IOLpreferred practice patterns

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Area of Science:

  • Ophthalmology
  • Refractive Surgery
  • Ophthalmic Devices

Background:

  • Phakic intraocular lenses (IOL) offer spectacle independence for patients unsuitable for laser refractive correction due to high refractive errors or corneal issues.
  • Accurate sizing of phakic IOLs (PIOLs) is a critical factor influencing surgical outcomes and patient satisfaction.
  • Challenges in PIOL sizing can lead to complications, necessitating standardized measurement protocols.

Purpose of the Study:

  • To provide a comprehensive guide for accurate phakic IOL sizing.
  • To outline step-by-step parameters and tools for calculating ideal PIOL size.
  • To assist surgeons, particularly those new to PIOL implantation, in achieving optimal lens selection.

Main Methods:

  • Systematic review of parameters required for PIOL size calculation.
  • Evaluation of various measurement tools based on surgeon preference and availability.
  • Analysis of the advantages and disadvantages of different sizing methodologies.

Main Results:

  • Identification of key biometric parameters essential for precise PIOL sizing.
  • Comparative assessment of ultrasound biomicroscopy, optical biometry, and other relevant techniques.
  • Demonstration of practical application through illustrative case examples.

Conclusions:

  • Accurate PIOL sizing is achievable through a methodical approach utilizing available tools.
  • Understanding the pros and cons of each measurement method enhances surgical decision-making.
  • This guide aims to improve the safety and efficacy of PIOL implantation surgery by addressing sizing challenges.