Tehran University of Medical Sciences

Science Communicator Platform

Stay connected! Follow us on X network (Twitter):
Share this content! On (X network) By
Accuracy of Different Lens Power Calculation Formulas in Patients With Phacomorphic Glaucoma Publisher



Tabatabaei S1 ; Samadi M1 ; Soleimani M1 ; Fonoodi H1 ; Ghods S1 ; Inanloo B1
Authors
Show Affiliations
Authors Affiliations
  1. 1. Department of Ocular Trauma and Emergency, Translational Ophthalmology Research Centre, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran

Source: Taiwan Journal of Ophthalmology Published:2022


Abstract

PURPOSE: The purpose of the study was to determine the most accurate formula for intraocular lens (IOL) power calculation among five currently used formulas in eyes with phacomorphic glaucoma (PG) undergoing cataract extraction surgery. MATERIALS AND METHODS: In this prospective interventional case series Patients diagnosed with PG were undergone uneventful phacoemulsification and IOL implantation. After 3 months, the refractive outcome for each formula was evaluated with mean prediction error (PE), mean absolute error (MAE), and the percentages of eyes within 0.25 D and 0.5 D of predicted error. RESULTS: Twenty-three patients completed the study. PEs were significantly different among the 5 formulas (P = 0.019), and Holladay I had the least error (-0.02 ± 1.11). Haigis formula had the highest hyperopic shift (0.37 ± 1.22), highest MAE (0.99 ± 0.78) and the lowest percentages of desired PEs, while the SRK II produced the greatest percentages. The overall differences in MAE between the 5 formulas were statistically insignificant (P = 0.547). CONCLUSION: In some extreme situations like patients with PG, lower generation of IOL power calculation formulas may still produce more acceptable refractive outcomes. © 2022 Wolters Kluwer Medknow Publications. All rights reserved.
Related Docs
1. Biometric Changes After Trabeculectomy With Contact and Non-Contact Biometry, Optometry and Vision Science (2016)
2. Intraocular Lens Power Changes After Mitomycin Trabeculectomy, European Journal of Ophthalmology (2015)
3. The Repeatability of Axial Length Measurements Using a Scheimpflug-Based System, Journal of Ophthalmic and Vision Research (2023)
4. Predictors of Intraocular Pressure Change After Phacoemulsification in Patients With Pseudoexfoliation Syndrome, British Journal of Ophthalmology (2017)
5. Ocular Biometric Changes After Trabeculectomy, Journal of Ophthalmic and Vision Research (2016)
6. Anterior Chamber Depth Measurement Using Pentacam and Biograph in Children, Clinical and Experimental Optometry (2022)
7. Post-Trabeculectomy Ocular Biometric Changes, Clinical and Experimental Optometry (2017)
8. Lens Position Parameters As Predictors of Intraocular Pressure Reduction After Cataract Surgery in Glaucomatous Versus Nonglaucomatous Eyes, Investigative Ophthalmology and Visual Science (2016)
Experts (# of related papers)
Mehdi Yaseri (4)
Akbar Fotouhi (2)