Estimation of Intraocular Lens Position from Full Crystalline Lens Geometry: Towards a New Generation of Intraocular Lens Power Calculation Formulas

Overview

Journal Sci Rep

Specialty Science

Date 2018 Jul 1

PMID 29959385

Citations 28

Authors

Eduardo Martinez-Enriquez

Pablo Perez-Merino

Sonia Duran-Poveda

Ignacio Jimenez-Alfaro

Susana Marcos

Affiliations

Soon will be listed here.

Abstract

In a cataract surgery, the opacified crystalline lens is replaced by an artificial intraocular lens (IOL). To optimize the visual quality after surgery, the intraocular lens to be implanted must be selected preoperatively for every individual patient. Different generations of formulas have been proposed for selecting the intraocular lens dioptric power as a function of its estimated postoperative position. However, very few formulas include crystalline lens information, in most cases only one-dimensional. The present study proposes a new formula to preoperatively estimate the postoperative IOL position (ELP) based on information of the 3-dimensional full shape of the crystalline lens, obtained from quantitative eye anterior segment optical coherence tomography imaging. Real patients were measured before and after cataract surgery (IOL implantation). The IOL position and the postoperative refraction estimation errors were calculated by subtracting the preoperative estimations from the actual values measured after surgery. The proposed ELP formula produced lower estimation errors for both parameters -ELP and refraction- than the predictions obtained with standard state-of-the-art methods, and opens new avenues to the development of new generation IOL power calculation formulas that improve refractive and visual outcomes.

Citing Articles

Spatial and morphologic features of lenses with different axial lengths in cataract patients: a swept-source optical coherence tomography-based study.

Chen C, Meng J, Cheng K, Kang C, Zhou L, Guo H BMC Ophthalmol. 2024; 24(1):542.

PMID: 39702138 PMC: 11660780. DOI: 10.1186/s12886-024-03813-y.

Comparing clinical outcomes of trifocal intraocular lens in patients with and without prior history of laser in situ keratomileusis for myopia.

Cao X, Zhang J, Shao J, Han W BMC Ophthalmol. 2024; 24(1):406.

PMID: 39289687 PMC: 11409726. DOI: 10.1186/s12886-024-03671-8.

Research progress on prediction of postoperative intraocular lens position.

Hu J, Zhang W, Cao D, Lei Q Indian J Ophthalmol. 2024; 72(Suppl 2):S176-S182.

PMID: 38271414 PMC: 11624629. DOI: 10.4103/IJO.IJO_1839_23.

Estimation of the full shape of the crystalline lens from OCT: validation using stretched donor lenses.

Martinez-Enriquez E, Maceo Heilman B, de Castro A, Mohamed A, Ruggeri M, Zvietcovich F Biomed Opt Express. 2023; 14(8):4261-4276.

PMID: 37799671 PMC: 10549758. DOI: 10.1364/BOE.493795.

Estimation of Crystalline Lens Material Properties From Patient Accommodation Data and Finite Element Models.

De La Hoz A, Martinez-Enriquez E, Marcos S Invest Ophthalmol Vis Sci. 2023; 64(11):31.

PMID: 37639248 PMC: 10461688. DOI: 10.1167/iovs.64.11.31.

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